Author's Note

So there are a few ideas about this story that I've been tossing around, and I'd like some feedback on if they should be included or how. I'll be posting each of them in these notes over the course of the next few chapters.

So the first thing I wanna know is, should the CMC get one chapter for all of them, or should they each get an individual chapter?

Also I know the title is a really easy joke, but... come on, I had to.

Taste the Rainbow

Twilight awoke the following morning feeling rather refreshed, her head clearer than it had ever been, and her sheets not stuck to her dick tip from another midnight orgasm. They also smelled sweetly of vanilla...

Twilight remembered that she wasn't in her own bed, and rolled over to find Derpy still sleeping beside her, her belly still slightly swollen from their session the night before. Twilight felt that she should really get back to the library before Spike started to worry, but she didn't want Derpy to feel like she was going to be abandoned again. So she remained in the bed, gently wrapping one of her wings around the gray mare and kissing her cheek.

About ten minutes later, she felt Derpy start to stir, opening her eyes and stretching with a soft yawn. It was perhaps the most adorable sight Twilight had ever witnessed, second only to seeing Fluttershy do something similar before snuggling a large stuffed animal at one of her friends' sleepovers. Derpy looked over her shoulder to see what had curled around her, her face blushing brightly at the princess who shared the bed with her.

"Good morning Derpy," Twilight brushed a small patch of bedhead from the gray mare's face. "I hope you slept well."

"I- uh- oh, yeah, I slept... good-" Derpy stammered, struggling to process the events that had taken place the evening before, and the fact that the princess was still in her bedroom, in her bed.

With her.

"I would love to stay longer, but I probably should get going before my little dragon wonders where I-" Twilight began before noticing the immediate disappointment in Derpy's expression. Twilight looked away shamefully before spotting her scrapbook poking out of her blouse's pocket. "Actually, I wouldn't mind staying for a quick shower, if you don't mind."

Derpy immediately perked up. "Oh, that would be wonderful Princess!"

"Please, just call me Twilight," the alicorn assured before gently kissing Derpy's forehead. "And know that you are always welcome at the library, and I'll be here whenever you want me to." Derpy's soft smile melted Twilight's heart, as she gently took the gray mare's hand and led her over to the bathroom.

"Also," Twilight added as she levitated the scrapbook to Derpy, "I was hoping we might be able to get a picture together. For the occasion?"

Twilight had to admit, this last picture was probably her favorite: side by side with Derpy in the shower, the mailmare kissing her cheek as both of their faces were painted with each other's love juice. It made Twilight feel a lot better about impregnating her, and she resolved to revisit the other three mares and give them the same kind of reassurance.

When Twilight had made it back to the library, it seemed like Spike hadn't gotten out of bed yet. Probably still sleeping in since I wasn't here to wake him, Twilight couldn't help but roll her eyes. She made her way to her kitchen, pulling out some ingredients to make herself and Spike breakfast.

It wasn't long before the smell of warm haycakes roused the dragon from his slumber and Twilight watched him wistfully walk around the corner and to the table. "Good morning, sleepy head," she taunted as she set a plate of haycakes in front of his seat. "Did you enjoy your extra beauty sleep?"

"As a matter of fact, yes I did. Thank you for asking, " he retorted, taking the first cake and stuffing it whole into his mouth. "Where were you last night? You weren't home when I went to sleep."

Thankfully Twilight had prepared an excuse on her way home. "Sorry Spike, I guess I got little too caught up in my constellation studies." Spike shrugged, seemingly content with the answer, and dropped another haycake down his throat. Twilight turned back to the stove to prepare her own breakfast, her thoughts wandering to the events of the previous day.

Now that her mind was free of her pent up desires, she could admit to herself that she may have gone a little bit overboard with the various partners she had encountered. She knew Celestia had said that she should find an outlet for her sexual needs, but she was pretty confident her teacher would be quite upset with the way she handled it.

At the same time, each of them seemed to love it. A little apprehensive at first, but none of them seemed to chastise her even when she was going at it full force. It was exciting, invigorating, and most of all, extremely fun. She couldn't help but wonder how her other friends might feel about it, but she ultimately decided that it would be best for everyone if she kept this down to the few ponies she already shared it with.

Her thoughts were cut off by the sound of a loud burp behind her, and she turned to find Spike opening a letter he had just received. "Oh boy, gotta go Twilight," he said as he grabbed the last of his haycakes and dropped them into his mouth. "Mrmm, Rarity says she needs my help today. I'll talk to you later."

"Okay Spike, don't stay there too late." Twilight chuckled to herself; there was no keeping that dragon away when Rarity came calling. Twilight finished preparing the last of her own breakfast and sat down to eat.

No sooner had she heard the door shut signifying Spike's departure when she heard it burst open again, a rainbow blur speeding directly up to her table and into her face. "Alright Sparkle, where is it??"

Twilight blinked several times, trying to process what in the hay Rainbow could possibly be referring to. "I'm sorry Rainbow, I'm not entirely sure what you're talking about. And couldn't you at least knock instead of just barging in here?"

"The toy, I'm talking about the toy!" she exclaimed back, completely ignoring the latter half of Twilight's remark. She began zipping around the kitchen, checking under and over everything in search of... something. "Is it in your bedroom? It's probably in your bedroom."

Rainbow attempted to fly up the stairs only to be caught in a purple miasma and pulled back to the kitchen. "ACK! Hey, no fair!"

Twilight pulled Rainbow to face her directly. "Rainbow Dash, would you PLEASE explain to me what in Celestia's name is going on here? What 'toy' are you even looking for?"

"Ugh, the one you used with Pinkie yesterday. If half of what she said about it was true, then I need one for myself, and I wanna borrow yours until I can find it."

Twilight's face turned an incredible shade of red. Of course, of COURSE Pinkie wasn't going to keep quiet about what they had done. "What exactly did she tell you?"

"That you almost tore her panties off and rutted her like crazy and it was 'the bestest, wonderfulest, most amazingest amazing feeling I'd ever had!' I didn't believe her at first cause, you know, it's YOU. I mean seriously, who could ever picture having sex with somepony." Twilight knew what Rainbow was trying to say, yet she still couldn't help but feel a little insulted. "Oh, and then she said that you squirted, like, gallons or something into her somehow. Did you actually do that, or was she exaggerating?" Twilight couldn't help but snicker at Rainbow missing the one crucial detail that must have been lost in Pinkie's enthusiasm. "What's so funny?"

"Rainbow, that wasn't a toy," Twilight admitted, stepping up from the table to put the dishes into the sink.

"But Pinkie said that you- and you- you know," Rainbow stated as she mimicked the vulgar actions with her hands. "If you don't have a toy, what in the hay was she talking about?"

Twilight pondered what she should do. She had just promised herself that she should keep her newest social circle small, and Rainbow was hardly the next pony she'd would've considered. Not because Rainbow was unattractive, but if Pinkie was going around and telling all of her friends about how Twilight fucked her, the last thing she needed was another loudmouth bragging about her lay.

At the same time, she thought about her scrapbook and the vow that she had silently made when she started filling its pages. She wanted a photo of every mare in Ponyville showing her just how much they loved her gift to them, and loudmouth or not, Rainbow was no exception to that.

Perhaps there was a middle ground for this situation. "Alright Rainbow, I'll show you my secret, but you gotta promise not to tell anyone else, okay?"

"Yeah sure, whatever, just show me!" Rainbow exclaimed as she flew directly into Twilight's face.

Twilight used her magic to gently nudge Rainbow a little further back. "You have to Pinkie Promise."

"Uughh, crossmyhearthopetoflystickacupcakeinmyeye now SHOW ME!"

Twilight sighed and dropped her skirt and panties, revealing to Rainbow her rising member, slowly stiffening from the cool air. Rainbow's jaw dropped, as she immediately zipped down between Twilight's legs. "Hey, what are you-?"

"Holy shit Twilight, this is probably the biggest dick I've ever seen, and it's not even completely hard yet! Did you just get this? Was it part of your alicorn upgrade? Do you think Celestia has one even bigger?"

"Rainbow, no I- I've always had this," Twilight meekly replied as she tried to wipe the image of Princess Celestia sporting a fifteen inch cock from her memory. "It just got a lot bigger from my ascension."

Rainbow gasped, "You've always had this? And you never told any of us? Come on Twi, I could've had the best lay of my life ages ago! Come on, we've gotta make up for lost time!"

Twilight tried to protest as Rainbow swiftly undressed in front of her, revealing her perky breasts and toned body to the alicorn. "Wait Rainbow, I-!"

Her argument died as soon as Rainbow dropped back to her knees, spit in each of her hands and vigorously started stroking Twilight's cock, watching it twitch to life in a matter of seconds. "Geez, Twilight, I can barely fit my hands around this monster. Seriously, you should've let us fuck this thing a long time ago." She began to squeeze and rotate her hands around Twilight's shaft, watching the small beads of precum turn into a consistent stream pouring out of her tip. "Is Pinkie the only mare you stuck this in? Or have you secretly been a stud behind our backs?"

"I- oh, fuck- I may have slept with a couple others," Twilight replied, feeling her orgasm building up in her balls. The surprise of Rainbow's eagerness started to wear off of Twilight, and something... new started to take its place. If Rainbow wanted this fuck so badly, the alicorn was going to make her work for it.

Just as Rainbow was about to lay her tongue on the tip of the monster in her hands, she felt it pull away from her grip. "Hey, what gives Twilight? I was just about to get to the good part."

Twilight subtly stroked her own cock, her expression taking on a much lewder visage. "You want this so badly, don't you?"

Rainbow looked puzzled. "Uh yeah, that's what I've been saying for the past, like, ten minutes. Were you even paying attention? Or am I just that good?"

Twilight smirked, Rainbow's cockiness only fueling Twilight's own attitude. "Beg."

"...excuse me?"

"You heard me. Beg" Twilight lifted her cock slightly so it loomed over Rainbow's head. "Beg for this dick that you want so badly."

Rainbow half-heartedly chuckled, "Okay, hold on Twilight, that's not how this works. See, I'm supposed to do such an amazing job that you'd beg me just to have a taste of what it's like between these perfectly shaped babes. Not the other way around."

Twilight shrugged. "Suit yourself then," she said as she turned to leave the room.

Rainbow shook her head in disbelief. No way Twilight, the nerdy bookworm, was about to walk away from the chance to have sex with her, right? "Wait wait wait wait wait, tha- that's it? You're just gonna walk away from what could be the best fuck of your entire life? You- You're gonna leave me hanging? You can't leave me hanging like that!"

"Like you said, I could've let any of you have this a long time ago," Twilight retorted as she continued to walk away. "Maybe I should go visit Applejack or Fluttershy. I bet they'd be more compliant."

Twilight began counting in her head as she began to walk up the stairs, her dick still proudly standing and taunting the colorful pegasus.

"...please."

Four seconds. "I'm sorry, what was that?"

"... I said please."

Twilight turned around and reapproached Rainbow, the pegasus still resting on her knees trying to hide her face in shame. "One more time, I didn't catch that."

"I said please let me have that monster of a cock, okay?!!" Rainbow shouted before swiftly covering her mouth.

Twilight giggled, "That's better." She tore Rainbow's hand away from her mouth, using the pegasus's surprised protest to shove her dick straight down her throat. Rainbow's eyes rolled back as Twilight thrust into her mouth, coating her tongue and throat in copious amounts of precum. She then abruptly pulled her cock away as Rainbow began gasping for breath. "What do you have to say now?"

"Please- *hah*- please keep fucking my face Twilight, it's so good! Cram it down my throat!"

Twilight's lust-addled brain didn't register how swiftly the pegasus changed demeanor, instead taking the opportunity to continue her aggressive assault on Rainbow's mouth. Inch after inch of her shaft slowly forced its way further down Rainbow's throat, the few pulses of her gag reflex only adding to Twilight's pleasure. With one final thrust, Twilight poured her seed straight into Rainbow's stomach before pulling out and coating her face and breasts with the rest of her incredible orgasm.

When Twilight had recovered, she pulled out her camera and snapped a picture of Rainbow to add to her collection before putting both away and levitating over a towel to clean herself up. "Well, that was fun, but I think I should get going, I have a lot I fell behind on. Maybe we could do this again some other time?"

Rainbow snapped back to reality. "Wha- NO! That can't be it! You- you've gotta pound me! Take my pussy and ravage me like you did Pinkie! I didn't come here for some measly blowjob!"

Twilight knew Rainbow could be blunt, but something about her word choice threw her off a little. "I'm sorry Rainbow, but I kinda wanted to-"

"Please Twilight, I'll do anything!" Rainbow pleaded as she presented herself to Twilight. "You can have me anyway you want to, I- I'll even let you cum inside! I know you could impregnate me, but I don't care. Just please fuck me!"

Twilight took a couple steps back, now getting a little more worried. "I mean, maybe we could next-"

"PLEASE... Princess!"

Twilight's mind tripped at the use of her title and the desperation in Rainbow's voice. She stepped forward and rolled Rainbow onto her hands and knees and rammed her cock straight up the multicolored mare's tight pussy, earning her perhaps the lewdest moan she had ever heard. She frantically began rutting the pegasus, beating the entrance to her womb with her cock repeatedly. Rainbow continued to moan and beg, pleading for Twilight to inseminate her until her balls were completely drained.

"Oh FUCK, Princess, your cock is SO FUCKING GOOD! RAM IT INTO ME! HARDER! HARDER! I-!!!!" Rainbow was cut off by a swift smack to her ass, her final words morphing into a pained yelp as she collapsed forward onto the floor.

"You- fuck- you will speak only when spoken to, understand? You want this cock so badly, you will do as your Princess commands. You are my toy, and you will behave like one. Do you understand?"

"...yes, Princess," Rainbow meekly replied, her voice hoarse from all of her screaming.

Twilight leaned further over Rainbow, preparing to unleash her load deep into her womb. Her thrusts became more and more frantic as her balls began to release her seed into her twitching shaft. "I'm gonna do it, I'm gonna flood your pussy with so much of my sperm that you'll get pregnant for sure! Say it, say how much you want your princess to knock you up!"

"Mmph, please Princess, cum inside me. I'm nothing more than your eager cocksleeve. Please, breed me!"

The last two words were enough to send Twilight careening over her limit, her cock pulsating with each rope of sperm that shot out into Rainbow. The colorful mare's stomach swelled as her womb struggled to contain everything that Twilight was pouring into it. Twilight pulled out when she felt Rainbow had reached her limit, the last few strands of her climax spilling out onto Rainbow's ass. Rainbow was twitching and squirting underneath her, lost in the throes of her own orgasm.

Twilight collapsed back, her mind clearing quicker than ever before and processing what had just occurred. While she greatly enjoyed Rainbow's enthusiasm, she could hardly call the pegasus's shift to submission anything normal. Come to think of it, each other mare she had exposed her secret to behaved quite similarly; Twilight wondered, if she had pushed them like she did Rainbow, if they would've behaved exactly the same.

Maybe it was about time she saw a doctor about her 'condition'.