As Twilight had suspected, Rainbow spent the night by one of their friends. Applejack had invited her to sleep over and Rarity had the idea to hold a slumber party at the farm like she had done with Twilight and Applejack. The mention of Twilight's name casted a shadow across Rainbow's expression but the girls had done everything to keep her mind off her fight with Twilight, the loss of her pegasus abilities, and everything else.

Games, ghost stories, lots of food for which Applejack even brought out apple cider from her secret stash, Fluttershy gave her a massage, Pinkie had great music ready and even by the make-up round of Rarity Rainbow was with the rest of the party, laughing, grinning, joking and feeling empty inside all the time. She had just wanted to be alone, to have time to think, something she normally didn't do much and would leave it to egghead, to Twilight, whenever a plan was needed to save Equestria. Twilight had been the fast-thinking brain and she the speedy wings of the gang, but now, now she was nothing.

Those thoughts haunted Rainbow as she laid awake, finally alone with herself and her own demons. She couldn't sleep at all as she was too busy thinking about what had happened yesterday. About how it felt to be caught in the storm like a butterfly in a spider web. The fear and anguish she felt inside it. Her bottomless shock when she noticed that she couldn't fly anymore and the painful despair when she was told by the princess that she would never fly again in her life. But the most prominent thought was Twilight Sparkle. Her face when Rainbow had blamed her for everything that had happened to her. How her iris had shrunk, her lips quivered and her ears laid back with every anger she had thrown at her friend.

Rainbow felt terrible. She felt that annoying twitch in her wings again, a twitch telling her to fly, to soar in the sky, to let go of the earthly worries and enjoy the heavenly freedom between the clouds. But no matter how often she would beat her wings, trying to scratch that itching in the base of her wings, going through all her feathers to their very tips, it was not enough. Because she couldn't fly anymore.

There it was again, that feeling of her heart squashed to the size of a grape, her lungs burning as she breathed quicker and faster, close to hyperventilation, her stomach feeling empty as if she hadn't eaten for days. Thoughts terrorizing her mind, how the Wonderbolts will look at her just pitiful before they go to their tour of awesomeness. How behind her back everypony would whisper and talk about her, the pegasus who couldn't fly if her life depended on it. How she failed her friends because she was nothing special anymore. And then there was that Tartarus damned itch in her wings, constantly there, constantly reminding her why she felt so terrible. She looked at her wonderful wings any pegasi would be proud to have.

The moonlight let her wings sparkle brightly as her silver feathers reflected the light, illuminating her wings in a mystic shimmer. With sunlight they would blaze even more. Yesterday Rainbow had thought they were cool, now she just wanted to rip them out as they reminded her that she was no longer lord over her own wings. She put her wings under the bedclothes before she let herself get carried away.

If only Twilight will find that book. I promise I make never fun of her loving those as long as they get me back the sky! The mere mention of her friend's name she had shunned in Canterlot changed her insides, as if she had jumped from a hot into a cold bath. All her grief and sorrow she felt for her loss of her wings, her pegasus magic, it was gone. Replaced with a void that even consumed the itching and twitching of her wings, hold them still. In this emptiness she felt neither hot nor cold, just empty and lonely. Rainbow felt her eyes became moist, quickly she wiped them, not wanting to cry in her sleep.

I'm such a stupid featherbrain. Why did I blame her for this? I was the one who had decided to save her. I was happy to know that she was safe! Twilight must have already felt responsible for what had happened to me and all I did was to step on her when she wanted to help me.

Rainbow looked around the room on her mattress. Around her in a circle slept her friends. Applejack with her saw-like snoring, Rarity with her fancy eye mask, the curled up Fluttershy and the twitching and mumbling Pinkie Pie. But Twilight was missing amongst them. Rainbow looked through the open window, watching the moon and stars, and decided first thing she would do tomorrow was apologize to Twilight. Even if she had to travel to Canterlot per train if she hadn't come home, she would make sure to let Twilight know that she didn't hated her.

Even if she didn't find a way to heal my invisible wounds, I'll apologize to her. I don't want to lose her too. Nopony can expect me to handle both the loss of my wings and a friend like her.

Rainbow rolled on her stomach, satisfied that she had a goal tomorrow though she had the feeling that she wouldn't fall asleep for the rest of the night. A couple minutes later she slept like a stone.

She had a dream. A crying Twilight who moved away from her, further and further away and no matter how much Rainbow ran she couldn't catch up to her. In her panic to lose her friend out of sight she beat her wings up and down and suddenly took off into the sky. She was surprised, happy, and delirious with joy! She flew loopings, saltos ala Los Pegasus, corkscrews and just straight lines for all she wanted. Her friends would be so relieved that there was nothing wrong with her after all and Twilight could- Twilight!

Rainbow stopped her flight, remembering why she had wanted to fly in the first place. To catch up with the disappearing Twilight Sparkle. She looked around but there was no sight from her. For the rest of her dream, no matter in which direction she flew, no matter how loud she shouted her friend's name, she didn't found her anymore. She was gone.

Rainbow woke up, staring at the ceiling, her bedclothes tossed aside. She felt her cheeks to be damp and quickly dried it with the bedding though nopony was in the room besides her. She heard noises from below and the hoofsteps of somepony, given their lightness they must belong to Fluttershy, coming up to her room to call her for breakfast in the sugarcube corner as they had planned yesterday. A few test beats of her wings told Rainbow that she really had dreamed only about flying and that this was reality.

Better get used to only being able to fly in my dreams. Thought the pegasus sadly as she stood up by Fluttershy's arrival to accompany her to the others.

If anypony had noticed that she had cried in her sleep, they didn't spoke about it on her arrival and walk to Ponyville which Rainbow was thankful for. At the Sugarcube Corner Pinkie wanted to go and wake Twilight to have her on time for breakfast. But Rainbow intercepted that she wanted to bring Twilight along. The others changed uneasy looks which Rainbow rolled her eyes in reaction to. Did they really believe she would fight with Twilight even now? After she reassured them that she only wanted to apologize for being "kind of a jerk" yesterday, the rest of the gang was okay with her leaving them though Rainbow could feel that they were reluctant to let her out of their sights. Though it kind of annoyed her, she was also glad for it. She wouldn't had acted any differently if any of her friends had lost something irreplaceable to them. Probably wouldn't have left their sides even if they went to the toilet or something like that.

When Rainbow stood before Twilight's door, she suddenly wished though that one of her friends had done just that, accompany her. She didn't quite know what she should tell Twilight, she was never good at admitting to be at fault. And then was there this tiny voice in her head which still told her that it was all her friend's fault, that she was a flightless pegasus now who couldn't even sit on a cloud. Then she heard voices from inside the library.

"Quick, Twilight! We're late for breakfast! Step up your game already!"

"Don't rush me, Spike! Just let me get that stubborn bed hair down."

"You really should just invent a spell against bed hair, you know? You would save lots of time with that."

"Not a bad idea, but I'm already finished. Hop on, us awaits a... deli... cious..."

Twilight words died on her lips as she stared into rose eyes. Rainbow was directly in front of her! Before her house! While Twilight couldn't have waited to meet Rainbow again, she felt kind of unprepared now, like when princess Celestia had surprised her with a surprise test in her filly days she hadn't learned for at all and only wrote a B+.

"Hey.."

Twilight jerked a bit back at Rainbow's greeting, the image of her hateful scorn from yesterday still fresh in mind. She almost stepping away from the pegasus in her doorstep and only stopped doing so as she saw the hurt on her friend's eyes. Quickly she returned to her original stance and greeting Rainbow as well, however quietly it was.

"Hey, Rainbow..."

Awkward silence followed it, both ponies unsure what to say next. Spike knew from Rarity that there had been "some sorts of a small misunderstanding" though this way both couldn't look at each other and pawed on the ground, this was a bit more than just a misunderstanding. He already wanted to ask what was up when both ponies started to speak at the same time.

"I'm sorry!" "Thank you!"

"Huh?” "Eh?"

"What are you-" "Why are you-?"

"You first." "You go ahead."

"No really, you-" "Look, you can-"

"Okay, enough! That's not funny anymore. Rainbow, you speak first whatever it is you want to apologize for. Afterwards, Twilight can be thankful for whatever it is she feels thankful for. And I go to Sugarcube Corner telling the others you will arrive in a couple minutes. Don't be too late or I will eat all the cinnamon buns myself." Both mares looked at the leaving dragon baby with blinking eyes. Then they turned at each other, Rainbow swallowed to wet her dry throat before she started again.

"Look, I- I wanted to apologize for what I have thrown in your face yesterday. I shouldn't have said what I had said. I'm sorry for that. You are a great friend and I just want you to know that I don't hate you. It would be horrible if I lose you too, so- so I- I..."

Twilight brilliant smile silenced Rainbow's apologetic mumbling. Twilight hugged her dazzled friend happily, already feeling what a great day this gonna be.

"You don't need to apologize, Rainbow. I know that you don't hate me and I would never leave your side. Especially not now." Rainbow nodded and hugged her friend back, feeling that this day won't be so bad after all. Then another twitch on her left wing reminded her why it wouldn't be a good day in the end. To keep her mind from those depressing thoughts clouding her current happiness, she stepped back from Twilight, wanting a distraction.

"What did you thank me for, Twi?" The unicorn blushed at Rainbow's question and turned her head slightly aside to not look directly at Rainbow.

"Well, I remembered that I never really thanked you for saving me yesterday."

"Geez, Twi. I would have done that for anypony."

"Yeah, I know." Twilight felt somehow weird though she knew this was a fact for Rainbow Dash's character to help everypony in need of it. She dismissed this weirdness for having not eaten enough.

"You know, I wouldn't have expected you back already. I thought for sure I had to catch a train after breakfast to find you somewhere in Canterlot."

"Oh, I came back because I got great news! I found the book with the cure!"

Rainbow's jaw hit the ground and her wings flared. Then like an excited filly she started to hop on the ground, her wings buzzed like a bee, repeating one word over and over again.

"Really? Really? Really really?"

"Really really." Twilight chuckled. Rainbow made a standing somersault and then rushed to Twilight to press her into her chest with a rib-crushing bearhug.

"Oh, thank you, thank you, thank you, Twilight! You're the best pony ever! Can you cast it on me right away? " Twilight had to rein the rampant Rainbow, her stomach grumbled loudly, still angry of having only a couple sandwiches and some tea since yesterday.

"It's a bit more complicated than that, but can't we talk about it over breakfast? The others surely would like to hear about it too."

"Okay, what are we waiting for? Let's race to the sugarcube corner. Ready, go!" And with that Rainbow sprinted, leaving a surprised Twilight eating her dust.

"Hey! That head start is unfair Rainbow!" Twilight yelled as she ran after her too fast to catch up friend.

Payback for the Running of the Leaves!" shouted Rainbow, determined to be the first at the goal to tell the others of Twilight's discovery. The Ponyville ponies watched the race with some interest, those who had to jump out of Rainbow's way with a bit anger. They all wondered briefly why Rainbow Dash didn't just flew to win the race, but they dismissed that thought quickly. It was not important after all.

~~~~~

After the lost match Twilight had to catch her breath first before she told everypony about her findings during breakfast. Needless to say that everypony was thrilled to bits once they heard the news from Rainbow. After they had listened to Twilight's explanations they had calmed down a bit though.

"So this is no immediate cure but a constant treatment?" Applejack asked while biting into a pretzel.

"Yes, this will need to get done daily though one day Rainbow's aura will have recovered on her own, binding her soul and body in harmony again. Then she will be able to fly as well as before."

"And you will "lend" Rainbow your own magic for that? I-is that dangerous?" Fluttershy asked timidly after she had licked some of her green tea.

"No, not really. It's like supporting somepony who can't walk properly till she can do so on her own." Twilight smiled very widely.

"And how does that spell work? I've never heard of stories where ponies could share their magic to heal another." Rarity's question was meet with some sips Twilight took from her teacup before she evaded the question.

"I not gonna bore you with the details, it's a pretty complicated spell even for me."

"But when will Dashie be able to fly again, Twilight? I need to plan for my "Congratulation to be a pegasus again, Rainbow Dash"-party for Dashie!" Pinkie had brought another tablet with yummy treats which everypony pounced on like starved out timberwolves. Munching on a daisy flower sandwich with mustard, Twilight thought about her friend's question. Especially since Rainbow had listened to her conversation with her friends with great interest.

"Well, I'm not so sure to be honest. I guess we have to test it first to see how effective it works on Rainbow to know when she can fly again."

"Then let's do this already! Cast your spell on me, Twi! Do it!" Rainbow exclaimed, puffing her chest and spreading her arms. Twilight swallowed up on her sandwich and coughed to get her windpipe free. Spike gave her a few slaps on the back as support.

"Th-thanks, Spike. Uh, I think it's better... if we do this at my home, Rainbow. I need... lots of concentration for this spell and it's a... very... time-consuming one too, so... yeah." Applejack raised her eyebrow at Twilight's stutter while Rarity wondered why Twilight was blushing so madly. Pinkie was bouncing in her place, giddily as ever. Fluttershy clapped her hooves together and smiled sweetly at Twilight and Rainbow.

"I'm so glad about those good news. If you're lucky you can fly with the Wonderbolts on the Grand Galloping Gala after all, Rainbow."

"You say it, Shy. Can't wait to show Spitfire and Soarin what my babies got in petto!" The circle of friends laughed at Rainbow flexing her wings, only one of the laughs had a hint of uncertainty, unnoticed by the rest.

Twilight gulped when she heard about the unanimous time limit. The book had said that the treatment would take months to accomplish a successful recovery. It had also advised to only share the magic of the unicorn to the patient only once every couple days as tests with daily treatment had shown signs of fatigue, headache and even loss of power in the magical control of the unicorn.

The test of Starswirl with Clover the Clever as the unicorn magic spender had ended after just three days and Clover recovered after a while from the symptoms. Also the unicorn didn't "lend" her magic as she had lied to Fluttershy. You "gave" it away. Like you would take off one of your legs to give it to the pony who had a bad one to walk with yours instead. There was no way she could tell her friends about that, they surely would want to stop her or treat Rainbow the slow way. But Twilight didn't wanted Rainbow to wait months till she could fly again. She would give her pegasus abilities back before the Grand Galloping Gala begun.

And the earlier she started with the treatment the better were the chances of success. Twilight munched down the rest of her sandwich and finished the rest of her juice in one gulp before she stood up from her place.

"Okay, that was a great meal, Pinkie. Thank you. Rainbow, do you want to come with me for your first treatment?"

"You really need to ask?"

"Okay, then let us go and prepare, right Twilight? What stuff do you need for the spell, I got a checklist ready to write down the-"

"No!" Spike and the others stared at her in surprise about her immediate and strong refusal of Spike's assistance, but Twilight would rather go back to magical kindergarten than explain why she didn't wanted Spike to watch how she "treated" Rainbow.

"Uhm, no, Spike, thank you. I can handle the spell on my own just fine."

"Ah thought that spell's complicated even for ya, Twi?" Applejack probed into her friend's argument, feeling more and more suspicious about her behaviour.

"Yes, but it's all mathematical stuff and such, I need no chalk or checklist or other ingredients for it. Also Rarity must be so behind her work line with everything that had happened recently. I bet she really could need a helpful assistant right now, right?"

"Indeed, I got lots of orders I need to work on the next days."

"I'll gladly help you, Rarity!" Spike had already forgotten about the new spell Twilight wanted to try out, if his fair lady called for help, he would gladly do anything for her.

"Great! It's decided then! Let's go, Rainbow!"

"Finally!"

And with that Twilight and Rainbow went out of the Sugarcube Corner, leaving behind a slightly confused group of friends and a heart-eyed dragon.

~~~~~

In the library Rainbow couldn't stand still and walked around, babbling in one go, excited about the possibility to fly again today while Twilight went from room to room to close every windows, pull the curtains before them and locked any door she could find. Something Rainbow was completely unaware of till the last window was shut.

"Oh Celestia, I can't tell you how relieved I am that I won't be a flightless pegasus for the rest of my life! I'm so happy I could just shout it all out... and... Why are you closing all the windows?"

"You'll thank me soon." Twilight said. She sat down on the couch and implied for her friend to sit down next to her. Rainbow shrugged at her friend's weird behaviour and jumped on the couch, bouncing on her arrival. Grinning she looked at the nervous Twilight, inpatient to get her treatment already.

"So? Will you cast the spell on me?"

"First, let me explain how the spell works." Rainbow made a face like a filly who had been promised sweet candy just to get vegetables instead.

"It's really important, so please listen well." After Twilight was sure that she got the pegasus attention she told her everything about the spell, especially about the details how Rainbow was supposed to get her needed magic out of Twilight to heal her invisible wounds.

Rainbow looked like a goldfish who had forgotten to breathe, while Twilight was busy rubbing her front hooves together and copy Big Macintosh's coat color in her face. Rainbow blinked, opened her mouth again, closed it, rubbed her face with her hoof, before she tried again to begin with the easiest question that came to her mind.

"What?"

Twilight breathed in and out, feeling that she to her embarrassment nervousness joined its company.

"To get my magic into your own aura, you... you need... to suck it out of my horn!"

Hearing Twilight's shout it was Rainbow's turn to get red hues on her cheeks coloring them in dark red. She was glad that Twilight had closed all the windows. No way had she wanted anypony to hear or see this embarrassing scene.

"Are you for real, Twi?" She asked, still not sure if her friend had just a struck of weird humor or if this really was the only way to heal her invisible wounds.

"Yes, I am! It's the only way to give you back your pegasus abilities. It was how Clover the Clever could treat Commander Hurricane's magical wounds and Starswirl documented the treatment. This spell will make my horn a gateway for my own aura, similar to when I normally use spells, but this way my magic will come out as some sort of fluid for you to swallow up and then my magic will get absorbed by your body which then will change it in time to fill the places where your own magic is missing."

That it took almost an entire year to heal Hurricane's invisible wounds kept Twilight to herself else her friend would never agree to a one week treatment. Though Rainbow's mind was stuck on another part on the fast-paced explanation from her friend.

"Okay, hold it. So I not only got to suck, but have to swallow as well? Is that some kinks of unicorns I wasn't aware of?" Twilight looked aghast at Rainbow.

"No, it's not! We unicorns normally don't feel much on our horns. That they are some erogenus zone is just a smut literature legend to raise the profits."

"Relax, I was just kidding." Rainbow laughed nonchalant, waving off Twilight's indignation. But in truth she felt as embarrassed as Twilight, thinking how she will have to use her mouth on the unicorn's horn to get her "medicine".

"Oh, okay. Then... you will do it?" Twilight asked, her expression worried if she had pushed too far and glowing embarrassed if Rainbow would agree to become her "patient" this way and what that role would include in the soon future. Rainbow looked around, her uneasiness clearly visible. Her tongue licked her dry lips and she gulped as she gathered the resolve to do one of the most awkward things in her life.

"Well, I will be honest that's the weirdest kind of medical treatment I have ever heard of. But then again I could imagine way worse stuff I would be ready to do than blow my friend's horn."

"Suck, not blow. You need to get my magic into you, not blow it onto me." Rainbow looked incredulous at Twilight who had taken her words literally, then she grinned mischievously.

"You're really a wallflower, aren't you?" Rainbow teased her blushing friend with wrinkling eyebrows and a dirty smile.

"Wh-what does my virginity got to do with this?!" Twilight defended herself blushingly, admitting her innocent inexperienced.

Rainbow chuckled. She felt much safer now, knowing that Twilight hasn't proposed it for some weird kinky unicorn stuff. If Twilight believed this would heal her, she would believe it too and do whatever is necessary to make this treatment a success. That was what she owed her friend after her offering of her own magic to get sucked out in such a way. Somehow it made Rainbow happy to know that Twilight would go so far for her health and happiness. She felt her cheeks heat up and quickly shook her head to get her mind back to what really counted now:
Sucking Twilight's horn dry!

Celestia, even for me that sounded smutty.

"Okay, we do this. Let's just make this clear first, this is just medical treatment, nothing sexual." Rainbow crossed her front legs in an X form as she stated the "professionalism" they would use for this "treatment".

"Of course. Then I will cast the spell now." Twilight sighed, relieved that her friend hasn't run out of her home and instead believed her and wanted to go with her suggestion. Her nervousness vanished, to know that Rainbow trusted her so much that she would go with such a ridiculous possibility to gain her flight back, made her excited for the first "treatment" as well. She closed her eyes to concentrate more on the spell's instructions, forming her magic to easily command it to follow her order. The blazing purple on her horn intensified its bright, making Rainbow close her eyes, till the brightness suddenly disappeared.

The pegasus opened her eyes and saw Twilight's horn glowing. Not in the usual way when the magic was forming around her horn whenever the unicorn casted a spell. It glowed from the inside like a light bulb in a soft purple glow.

Rainbow bit on her lips to keep all the puns in check she could say with Twilight having a “light” on her head. They had agreed to do this professional and she would follow their agreement. Besides she would be the one to suck said lighted up horn pretty soon.

Twilight used her magic to bring a hoof mirror to her face to check how her glowing horn looked like. She hummed quietly as she felt a tingle in her horn when she used her magic.

"Interesting, I can still use magic, but it feels different, kind of pleasing now." Rainbow had a really hard time, not to burst out laughing, thinking that her friend was basically touching herself and didn't even noticed it. But she fought down her mirth, looking at the horn which would give her what she needed to fly again. Somehow it was fascinating to stare at this glowing horn. Despite her seeing such horns daily, she had never thought for once to suck on them, even when she had been with some unicorns together for some fun times. Two purple hooves went up, covering the horn Rainbow was so focused on.

"Would you mind not to stare so much on it? I-it's embarrassing." Twilight blushed as she felt her friend's stare intensify the tingle in her horn. Rainbow found Twilight's virgin reaction so adorable. Being embarrassed about her horn which she showed everyday was so cute and to think that she offered it for Rainbow's use only, made it all the more exciting for the experienced pegasus.

She felt her mouth water as she noticed that she couldn't wait to feel what a unicorn's horn, Twilight's horn, tasted like or if they had any taste at all. But she wouldn't just jump her friend. First she was Rainbow Dash, jumping a virgin isn't cool and second Twilight was still slightly uncomfortable, much more than Rainbow, though it had been her idea to treat her friend this way.

Carefully Rainbow got closer to the horn and pushed Twilight's hooves away softly. Twilight's eyes darted everywhere, feeling her heart beat faster and her breath become quicker as she couldn't anticipate how her friend's mouth would feel on her horn. Though her maiden embarrassment and scientific curiosity fought each other to a ceasefire, there was this strange excitement Twilight couldn't quite explain as Rainbow's head disappeared from her sight and she felt it coming closer and closer to her horn. She closed her eyes, waiting for the first touch and how she would feel it.

Then Rainbow blew slightly on her horn causing Twi to twitch in surprise allowing shocked squeak to escape her throat. Rainbow laughed quietly when Twilight looked angrily at the prankster to have played her expectations so misguidedly. This anger made Twilight braver and she leaned her head down, poked her horn a bit forward, closer to Rainbow's chin who stopped her laughs at Twilight's movement.

"If you don't want to suck, go. If you want to, then suck on it already!"

"Whoa, careful. We got a pimp over here"

Before Twilight got give back a reply to Rainbow's retort the pegasus reached out with her hoof and touched Twilight's horn gingerly. Twilight gasped as the hoof, so much softer than she had expected, moved up and down. This sensation was new to Twilight, it couldn't compare with the times she had touched herself whenever she felt the needs a mare felt sometimes. Having somebody else touch you was so different, so exciting, and so good. Twilight pressed her lips together to not make a sound leave her mouth. She had promised that this would be just a professional treatment and she would not feel this way when her friend did this only to heal her magical wounds.

But by Celestia! This feels so awesome!

Rainbow felt the smooth surface of Twilight's horn. It was strangely warm and pulsated softly under her touch. The grooves on the horn were small and lacked creases, the thoughts to move her tongue along and between those lines were more thrilling that Rainbow had expected them to be. She heard Twilight taking in sharp breaths through her nose and how her head and chest twitched under her touch every now and then. It didn't annoyed Rainbow that Twilight felt good under her touch. To the contrary, it made her want to go further.

After a few strokes, Rainbow couldn't wait any longer. She wet her lips, opened her mouth and raised her head over Twilight who had her eyes open in a mix of inpatient anticipation and scared curiosity as she watched Rainbow's face disappear from her sight.

Then she felt a lick on the tip of her horn.

Her body shook, her horn pulsated strongly and she felt her tail twitch. The Book had spoken of the horn being more sensitive but never of such sensations in touch Twilight felt now. When Rainbow gave it some more licks like a tasty lollipop Twi pressed her lips tightly together, determined to keep her moans down. But she couldn't suppress the pleasant hums which upon hearing made Rainbow's wings twitch, this time because of a different reason than the need to fly. She felt her heartbeat quicken and her blood heat up. The pegasus retreated slightly to look down on the heavily breathing unicorn who looked up questioningly with glossy eyes and red shaded face. It made Rainbow lose all reservations she still had in the back of her head.

Suddenly she went in for the kill and took the first inches of Twilight's horn in her mouth. Rainbow sucked on it like with all her experience in mid and licked it's soft and round tip with fast-paced movements of her tongue, wetting it with the salvia. Twilight felt her body become warm as her horn seemed to become a hot iron right into her mind to shut it down, to stop thinking and to enjoy more and more what her friend did with her tongue. The unicorn's back arched backwards and Rainbow followed her movement, leaning now completely over Twilight on the couch. Twilight felt something bubble inside of her and Rainbow tasted for the first time the magic of her friend as some drops left her horn's tip kind of like the pre of stallion members.

Didn't the spell just turned her horn into a di- oh my goodness!

Rainbow's comparison vanished with Twilight's drops touching her tongue and ran down her throat with her spit in one go. Those magical drops were better than anything else she had tasted in her life. It was less of a taste and more of a feeling she got whenever another drop touched her taste buds. It reminded her of the first time she had flew, the first time she made a Sonic Rainboom and the first time she became friends with the other elements of harmony. It was happiness bottled in the form of her friend with her horn being its leaking cap. Rainbow hummed in delight to the delicious taste of her friend's magic which made Twilight moan loudly feeling the vibrations, not caring to keep her sounds in check.

More magical fluids of her aura left the tip of her horn. Hungrily Rainbow took more and more of Twilight's horn size, adoring how the horn flexed inside her mouth, warmed her spit as it ran down the rills onto Twilight's mane and how sturdy it felt under her rapid attacks with her tongue. She started to bob her head up and down, her nose hitting Twi's mane, wet with trails of her salvia. She took all of Twilight's horn, feeling it hit the entrance to her throat.

The aroused pegasus took a deep smell of Twilight's silky hair. Her friend smelled so good with the lavender shampoo and her natural scent mixing in Rainbow's nuzzle. It made Rainbow moan for the first time, rolling her tongue under the horn to tickle the thickest part at the base of her friend's alicorn member. Twilight moaned loudly in return at this stimulating experience to tickle some more magic out of her.

She was in delirium at this point of Rainbow's medical treatment. Uncontrolled with so many sensations hitting her mind, her hind legs thrashed around, hitting the small table next to the couch and made it fell down together with the wooden unicorn head statue on it. Both paid the noise no mind, too busy to enjoy taste and touch with each other.

Twilight's front legs curled up and she closed her eyes, her mouth opened wide, breathing quickly and loudly without a care in the world, feeling heavenly under Rainbow's body. Twilight's sounds were a sweet motivator for Rainbow to go faster and more meticulously with her tongue, to make sure her friend got as much joy as she felt right now.

"R-Rainbow!" Twilight cooed her friend's name for the first time since the treatment had begun. Rainbow's eyes went wide at the sound of her name in Twilight's melodious voice. Her wings flared widely as the deeply caring, almost lovingly tones pushed the pegasus beyond the excitement she had felt till now.

She wanted to hear it more, to hear this sweet voice call out her name, to have those mellow sounds of Twilight mix with the dirty slurping and sucking of her own, filling the room, leaving nothing but them together in bliss. And Twilight supplied her friend's unspoken demand and moaned her name again and again, feeling Rainbow quicken her pace every time her name came over her purple lips.

Rainbow hold Twilight up to feel her soft body on her own, tender purple fur brushing against rough blue coat. She stroke her friend's straight mane and slender back with her front hooves as she sucked harder on Twilight's horn. Her flared wings went around Twilight to keep her steady for her mouth's access. Twilight sighed happily, feeling the pegasus's warmth. Her front legs went around Rainbow's back, below her wings, pressing herself closer to this strong and protective chest, their hearts beating in unison, her head hold still for Rainbow's easier use on her horn.

Rainbow felt Twilight's horn twitch strongly and Twilight's hug tightened. She went in for the finishing move, bobbing her head faster and faster, curling her tongue around the soft and smooth surface of her horn while Twilight chanted Rainbow's name in raising pitch. She loved to hear her name in this sexy yet helpless in joy voice of her friend. Twilight felt her magic bubble and raise inside her, ready to burst anytime. She tried to warn her friend, but all she could do was call out her name in urgency yet it was enough for Rainbow to know what would come next.

Humming Twilight's name with her last bob, Rainbow licked the entire horn up and down, feeling the tip being caressed by the vibrations of her throat. Twilight blew her magical load and Rainbow holds her horn in place with her lips wrapped up around it tightly, gulping down every ounce of her friend's aura into her body. But it was too much of a treat and Rainbow's mouth filled with more magical fluid than she could swallow. She left the horn to gasp for breath after her last gulp to free her nuzzle. Spurts of Twilight's magic hit her open mouth, filling it again with its heavenly taste and covered her heated up face and rainbow-colored hair over and over again.

Twilight calmed down and her horn stopped to produce magical fluids. With an exhausted sigh she laid back on the couch with her in her friend's salvia covered horn, still glowing and twitching. Rainbow didn't let the spurts on her face go to waste and reached on them with her tongue and gathered the rest with her hooves, slurping the glistening, invisible mess with eyes closed in the joy of her culinary delight.

"You taste so wonderful, Twilight."

Then without any embarrassment she leant over her tired friend to lick her horn clean and suck the last magical drops out of it. Twilight moaned and embraced Rainbow, pulling her closer to her, not wanting to let go of this happiness she felt with her friend being next to her.

"Hmmm, Rainbow, you were so... amazing."

The praised hornsucker grinned proudly and cuddled into Twilight's embrace to hug her back, nuzzling her wet smile into her sweaty purple coat. She felt a happy accomplishment, she normally hadn't felt with anypony she had been together before. But then again, this was nothing sexual as she had promised her friend, so maybe this was just the happiness she felt to be a step closer to her old self. Yet somehow it left her unsatisfied when she remembered her promise to Twilight. But before she could ponder more about this weird feeling, her wings started to tickle and to itch. Her feathers grew hot and when Rainbow looked she saw her silver feathers glowing.

"T-Twilight! Something is happening!"

Carefully Twi let go of her friend, though she felt an opposition inside her to not feel Rainbow's warmth for a bit longer. She shoved those selfish thoughts away to focus on what was really important.

"Don't worry, it's just your body getting used to my aura inside it and changing it to fit yours. Once the glow's gone and you feel nothing out of normal again, we should do a test with your wings." Hopefully everything went alright, I don't want to see her disheartened expression if even this fails.

After the glow in her silver feathers had disappeared Rainbow spread her wings nervously. Carefully she beat her wings up and down. Hopefully everything went well, I don't want to see her disappointed face if this failed.

She beat faster and faster, determined to find any progress while Twilight watched her friend with growing fear. Suddenly Rainbow's hooves left the ground. She was airborne!

Though she only hovered a mere metre above the ground both Twilight and Rainbow gasped at this sudden jump in her pegasus abilities. Twilight jumped around her couch in joy to see her friend her flying again while Rainbow was close to crying and did her best to fight the tears down. Suddenly she felt her wings become weak, no they were strong as ever, but she still felt losing power in their beats as she fell on the ground onto her flank. Twilight stopped her happy circle jumps and looked shocked at Rainbow sniffling, her worst fear appearing in her mind again: She had failed her friend.

"Rainbow? Are you- I- I'm sor-" Suddenly the pegasus jumped from her position, lunged at Twilight and embraced her in a hug.

"Thank you, Twilight. This was only possible 'cause you're such an amazing friend." Rainbow whispered as she hid her tears in her friend's shoulder who felt her fear and worry vanish with no further mention. With a smile she returned the hug and nuzzled her cheek on Rainbow's neck, feeling the joyful feeling return her heart had hosted on the couch in their embrace before.

"I hope this means, that you will be healed soon. I want to see you show your tricks to the Wonderbolts next week." Rainbow moved her head from Twilight's shoulder, looking with still moist eyes from damping her friend's coat into violet eyes who looked surprised to be allowed to see the strong and cool athlete in such a state.

"Me too. I mean, that you'll see how amazing I can fly again all thanks to you, Twi. Only because of you I can become me again." Twilight blushed and cast her eyes down on Rainbow's chest, the chest she had desired to touch again, to be close to it again and hear its reassuring heartbeat again. The unicorn gulped at those thoughts, unbefitting of a helpful friend and quickly closed them away. She turned around for Rainbow unable to see the infighting of her feelings on her face.

"W-well, this was only the first treatment and it made you hover for less than a minute. We need many more sessions before the Grand Galloping Gala to make sure that you're back to your old form."

"Yeah, I guess." Rainbow agreed with her magic donor. Her wings twitched in happy anticipation to make Twilight moan her name in her sweet voice again. Rainbow jerked slightly and kept her traitorous thoughts under control, ashamed that she couldn't wait for the next donation not for its medical use but to feel Twilight's warmth and softness again.

"So, when should we meet again?" Rainbow asked after she made sure that her wings were pressed tightly on her body. Twilight had closed away her selfish thoughts and turned with a friendly smile to her friend.

"I'd say this evening, depending on the results we should increase the intake of your doses to three or four times per day. And for such many uses, I'd think it would be better if you... would stay over here for the next days." Twilight suggested, stroking her left front leg with her right hoof, feeling embarrassed at how much she hoped for her friend to say yes. Which Rainbow delivered promptly.

"Of course! I'd love to, I mean, we had planned anyway that I would sleep by the others till I found a house on the ground, but with you treating my invisible wounds I should stay with you till I'm fully healed." Though this was only half the truth for Rainbow's reason to stay at Twilight's place as the prospect of seeing Twilight's smile and hear her voice daily whenever she went to bed or woke up was too good to pass up. Her face heated up when she realised how much she had wanted Twilight to offer to her to stay over.

An awkward silence settled between the two ponies, trying to keep their embarrassment in check. To keep herself busy, Twilight decided to clean up their mess as that would hopefully stop herself thinking how Rainbow would share a room with her. And it would be easier if Rainbow was out of sight as well for a while.

"You should go up and take a shower while I clean up this mess before Spi-ah." Twilight's eyes grew to the size of plates and her iris shrunk to pinhead size as she saw an impossible to revoke proof from her traitorous body on the couch. She curled up into a fluffy purple ball, her tail whipping around her body and her hooves covering her red face. Rainbow moved at her side to look what made her friend so flustered to see the stains on the place she had gotten her treatment from Twilight. A sniff told what kind of stains those were and she understood Twilight's embarrassment all too well as her wings stood up in full attention. Thankfully her friend was too busy apologizing to notice Rainbow's wingboner.

"I'm sorry, I'm sorry, I'm sorry! It just felt so different and good and I- I couldn't control myself and I didn't even noticed that I- that I-" Rainbow stroke Twilight's back with one of her wings, as it was impossible to keep it to her sides. With the other she pointed towards the couch once Twilight had raised her head to look at her friend. When the unicorn followed the wing's direction, she noticed more stains a bit further down from the ones she had discovered. Her nostrils took in a deep breath and confirmed her suspicion as she could smell the sweet arousal of two mares mixed their salty sweat in the air. She would have to ventilate the room before Spike returned.

"Looks like we both are perverts, huh?" Rainbow joked, an uneasy smile adoring her lips as she couldn't believe herself how much she had enjoyed to suck on her friend's horn while at the same time she felt proud to see that she had given Twilight a great time as well.

"We can't tell the others about this." Twilight said as she stood up, feeling somehow better to know she wasn't the only one who had felt too good to keep her urges under control.

"You think I want to tell our friends that I came when I sucked your horn? Fat chance. Fluttershy would have a heart attack and Applejack would tease me till one of us kicks the bucket."

"Yeah and Pinkie would throw us a party for the whole town to know while Rarity would fancy this as a romantic development."

Both ponies blushed deeply and looked in another direction by Twilight's last words. To prevent another awkward silence to come between them, Twilight coughed and moved to the couch to start the cleaning process but before she could levitate anything, a hug from the side halted her. Rainbow had flung both hooves around her neck, her face behind Twilight's mane, hidden from Twilight's frozen view.

"I just want to let you know how happy I am that you gave me hope, Twi, a real chance to fly again. Once I've cleaned up, I will show the others the results we got thanks to you. They will be so happy for me, but all combined not as happy as I feel right now. Thank you, Twilight, thank you! Without you... I don't know what would have become of me, but I surely wouldn't have been the same pony as before."

Twilight was touched by the heartfelt thanks her friend had given her. She stroked gently the blue front leg around her neck with her hoof. Her lips parted into a felicitously smile, knowing she had done the right thing.

"Anytime, Rainbow. Though I think it's thanks to your skills that I could provide you with so much magic." Rainbow snorted with laughter, let go of Twilight and ran up the stairs quickly to not let Twilight see her smile stupidly with a face as red as a tomato with sunburn. Neither of the two had taken notice of the silver feathers turning purple at their rims yet, only after the next treatment this evening they would see and blush at their sight, not knowing yet that the next day’s their friends would make many light-hearted jokes about those feathers turning to the same color as Twilight's coat.

Unaware of this soon future Twilight casted off the spell to make her horn turn into its less sensitive form again. The fallen pony head statute still laid where it had fallen thanks to her trashing. With light blushes on her cheeks remembering the wonderful sensations which had caused said trashing, she channeled her magic to levitate head and table up again.

"Ow!"

Twilight let the head fall after a sudden sting in her forehead. Her world started to turn around her and her legs felt weak and wobbled. She blinked confused as she supported herself on the couch while her other hoof kept her swaying head steady. After a few seconds the spook was over. Twilight breathed in and out, reminding herself that such symptoms were normal for the magical donor. If she continued to show such signs she would have to think up a harmless explanation for Rainbow.

Twilight stared at the mute statute head, focusing her magic on it again. This time it easily levitated up in the air same with the table standing up again. Twilight sighed relieved and shrugged this experience away. She wanted to leave the couch to get cleaning tools for it as she noticed a sparkle in the corner of her eye. Her curiosity caught and in hopes to find a silver feather to examine, Twilight turned her head. What she found was not a feather, but a hair of a mane or tail, silver nonetheless.

At that moment the puzzled Twilight did not know yet that this silver hair was only the first of many to come and the start of a terrible secret she would hide from Rainbow and her friends.

Author's Note

Proofreading done by Odycay. Timberwolf65 promised to give it a second look-over once he finds the time for it. I want to thank both of them very much for leading me their time and talent to help me out. I love you guys. <3 (in a platonic way only ofc)

And with this the biggest chapter and main part of the fic is done!!! 8D
It's also the most cloppiest one I have done till now. Though it clearly is not mature. I mean, we're not talking about explicit sex here, just "medical treatment", right? XD

The whole horn sucking stuff took me almost an entire day and ate almost half of this chapter's words amount. I hadn't expected to keep so much in mind when I first thought up this kind of idea. Back then I was "hey, it would be neat if RD couldn't fly due a magical wound instead of a physical one. And that said wound would get healed by sucking magic out of Twi's horn.".

It became way more heated and romantic than I had planned for it to be, my first draft had been more comedic and light-hearted, but somehow once I was into this scene it became, well, what it is now. It basially wrote itself with Twi and RD pushing it forward themselves, if that makes sense.^^;

The breakfast with the friends also wasn't in my draft, yet I felt that I had to include them. Leaving Applejack, Rarity, Fluttershy and Pinkie Pie out or only give them a brief mention just didn't cut it for this chapter! And that's due to show the difference between the "friendship" that the six had demonstrated at the beginning of this chapter and the "revelation" of the "new feelings" between Twilight and Rainbow in the second half and end of this chapter. It all makes sense, doesn`t it? :D
Especially the title. XDDD

Please tell me your thoughts about this chapter as I like to know if I did good with the "saucy" parts, meaning I could try in future fics more "mature" parts or if there are stuff I could improve myself with those scenes. :)

PS: Chapter 4 is finished and awaits proofreading. ;3