“Hey, Belle.”

Sweetie looked back towards the exit of Octavia’s Music School. Her bandmates, two pegasis and a unicorn, stood right next to the door.

“Yeah?” Sweetie asked as she turned her head back, taking the electronic keyboard she had just used in the practice to put it back on its place.

The unicorn - a mare with light green mane and yellow coat took a step forward. “We’re heading to Sugarcube Corner, hang out there for a little while.” She said, pointing back with her thumb in the general direction of the sugary store. “Wanna come?”

“Nah, I’m pretty tired.” With the keyboard on its rightful place, Sweetie stretched her arms up in the air and looked at her friends. “I’ll just go home, eat something and watch a movie. You all better not stay out till late, I don’t want you all whining of how tired you are tomorrow before the show.”

“Relax, Belle.” The unicorn answered as she rolled her eyes. “We won't.”

“Yeah, We won’t complain about being tired.” One of the pegasus, a stallion that had a platinum mane with some streaks of white and gray coat said. “We’ll be too busy complaining about the massive hangover we’ll have after drinking so much today.”

“As long as you are the one paying for the drinks, I’m in.” The other pegasus, a mare with the same mane color but lighter coat said as she took her purse from one of the chairs near the entrance.

Sweetie sighed, slapping her forehead, but kept a tiny smile as she knew they were just joking. “Please don’t do that.” She looked at the unicorn. “Jazzy, can I count on you to keep an eye on the twins for the night?”

The unicorn gave a thumbs up. “Sure thing. I won’t let them get out of control.”

“Ha! She won’t be able to keep me away from my true love!” The stallion exclaimed as he ran out from the building.

“I… I’m no longer sure if he’s joking.” Sweetie said with a worried look.

“He won’t be if we leave him alone. See you tomorrow, Belle.” The pegasus walked out, the unicorn following behind while waving at Sweetie.

“Bye.” Sweetie answered before the door closed.

Sweetie looked around the room, making sure that everything was in the right place. Happy that her friends had left the instruments they had used where they belonged, Sweetie walked to the door at the opposite side of the entrance. She walked through the hallway, her gaze fixed on the furthest of the doors.

She knocked.

“Come in.”

Sweetie opened the door and peaked her head inside. “Hey, Miss Octavia. We are done. Thanks again for letting us practice here… and for lending us the amps for tomorrow. I promise to take good care of them.”

The gray mare who was sitting behind a desk flashed Sweetie a grin. “I know you will. Now,” Octavia signaled Sweetie to take sit on a chair in front of the desk and waited for Sweetie to sit down “How are you feeling about tomorrow? Excited? Nervous? Both?”

“Excited. I mean, this isn’t the first time someone has hired us for a party, but it will be the biggest one we have played in so far.”

Octavia nodded. “It’s… I don’t know her name, but it’s the birthday party of Filthy Rich’s daughter, right?”

“Yeah, Diamond Tiara. Her birthday parties are one of the biggest events here in Ponyville, and I’m so happy that she chose our band for such an occasion.” Sweetie said with excitement, but it suddenly disappeared. “Maybe I am a little bit nervous., It is a big party after all.

“That’s normal, Sweetie, but everything will turn out alright.Your band is really talented and you are an amazing singer. I’m actually a bit worried about you performing,” Octavia said, feigning alarm.“What if you get discovered by some rich pony in that party and offers you a good deal with a discography? The school would lose its best teacher.”

“Really? I’m the best teacher?”

“Well, right after me, of course.” Octavia laughed.

Sweetie laughed too. “Right. Well, I better get going. See you tomorrow, Miss Octavia.”

“Good-” Octavia’s eyes widened. “Oh wait! I just remembered, I’m busy tomorrow afternoon, so you’ll have to come by early for the amps.”

“You’re going out in a date with Vinyl, right?”

Octavia smiled goofily. “Tomorrow is our anniversary.”

“Congratulations! And no problem, I can come earlier.” Sweetie Belle said as she left Octavia’s office.

Sweetie Belle grabbed her bag from the rack with her magic and left the building. She still had about half an hour of sunlight before she got home, but she did not slow down to enjoy it, as she eagerly rushed home.

Today had been so tiring. Her singing classes took almost the whole morning, and when her lunch hour had finally arrived, her plans to go home and eat there were ruined when her bandmates arrived earlier than she expected for practice, nothing she could do there.

Right now she just wanted to change her clothes, eat dinner and relax for the night. Talk with Rarity, or maybe watch a movie together.

‘I hope there is something good on TV tonight.’ Sweetie thought, smiling as she looked forward. The boutique was now in sight, making Sweetie Belle hasten her pace. The sign on the door read “Open” which meant that Rarity was home.

Coming in she dropped her bag on the couch, and shouted . “Rarity, I’m back!” She waited for a reply a bit, but no one answered. She didn’t think anything of it - it just usually meant that Rarity was busy working on something.

With a shrug, Sweetie Belle flipped the sign at the door with her magic, it was almost time for the boutique to close for the day anyway.

The unicorn moved to the kitchen and noticed that dinner hadn’t even been started. Any other day she would be happy to cook something she had learned for Rarity and her, but today she felt really tired. ‘I’ll make sandwiches… right after I take a bath. I’m really sweaty from all the playing this afternoon.’

Sweetie did not look behind before taking a step back. A hiss as the only warning she got before a sharp claw made contact with her leg. She jumped back, her hands covering the fresh claw marks.

“Ouch! Opal, what the hell?!” Sweetie glared at the cat, who returned it. Taking a better look, she understood what had happened. She sighed. “Sorry, I didn’t mean to step on your tail.”

Opal hissed at her again, looking ready to murder.

“I’m really, really sorry.” Opal just kept glaring at her. “I’ll give you a full can of tuna.” And just like that, the cat was back to being just grumpy. “After my shower.”

“Meow!”

Sweetie ignored Opal’s complaints, moving to the second floor and walking down the hallway to her room, but before reaching it, Sweetie Belle stopped and took a few steps back. The door of Rarity’s inspiration room was wide open, and with a quick look inside, it was obvious that nopony was in there.

“Rarity?” She called for her sister, but again, no reply was heard. ‘Where is she?’ Sweetie Belle thought in confusion and worry. She looked down the hall, at the door in front of her own room. Her palm met her forehead. ‘Duh, her bedroom.’

“Rarity, I’m back.” Sweetie said as she walked into her own room, not bothering to close it as she would be out in a moment. She searched in her wardrobe, taking out her pajamas, a towel and some clean underwear before stripping off. She was in the process of removing her panties when a loud noise of a door slamming closed startled her.

Sweetie jumped, looking back. “Rarity?” She asked worriedly, the noise had come from her sister’s bedroom. Using her magic, she took her towel and wrapped it around herself before exiting her room. “Rarity.” She called out, placing a hand over the door’s surface. “Are you alright?”

Again, there was no reply from her sister. This caused Sweetie Belle to grow worried. She tried to turn the knob, but it was locked.

“Rarity!” She said louder than before while knocking on the door, afraid that something had happened to Rarity. Her horn glowed with magic, intending to use it to force the door open.

“I’m fine, Sweetie.”

The magic dissipated the moment she heard the muffled voice of her sister. She relaxed a bit, but was still a bit worried.

“Is something wrong, sis?”

“... No. I-I’m fine.”

It didn’t sound like that. “Can I come in?”

“No!” Rarity said with force.

“Sis, are you really alright?”

“... I’m not feeling well, Sweetie. I just-”

“Are you sick?” Sweetie interrupted. “I can go and get you something. Some food maybe?”

“I’m fine, Sweetie. I just need to rest.”

“Sis, if you aren’t feeling well then just let me in and-”

“I’m fine, Sweetie Belle!” Rarity yelled, causing Sweetie to take a step back. It was silent for a moment before Rarity talked again. “I’m fine, really. I just need a night of sleep.”

“I…”

“I… Alright, sis. If you need something, I...”

Rarity listened as her sister walked away. She remained in place, sitting on the floor with her back against the door, her cheeks warmer than they should be.

She hadn’t been prepared for it. The moment she opened the door, she could feel how her nose was filled with the fruity mix and the arousal from this afternoon flooded back into her body.

The image of her sister bending over, removing her underwear while exposing herself to Rarity… That’s not what she needed right now.

Rarity drowned her face in her palms. Her self control had slipped this afternoon. She didn’t know how, but she had managed to stop herself from masturbating while thinking about her sister at the last second. She pulled a literal miracle, when she had thrown Sweetie’s shirt back in the laundry basket and had fled from the scene, escaping right away towards her personal bathroom. How could the thought of pleasuring herself while thinking of Sweetie even cross her mind?

A long, cold shower helped, one that washed away those thoughts, cleared her mind and helped her start fresh. Her second chance to be stronger.

It had turned out to be a waste. Just when she had finished it, she had to heard her sister calling for her. She had to open the door to such… tempting beauty.

Rarity’s hand trailed down. She was currently wearing nothing but her dressing gown, a piece of cloth that allowed her hand easy access to her nether region.

She ran her middle finger over the lips of her pussy few times, each stroke making her sex warmer. The other hand moved freely over her chest, occasionally touching the slowly hardening nipples under the silky fabric.

Rarity hummed in pleasure, her mind filled with the fresh image of her sister’s naked body. Two more fingers joined her index in rubbing her vulva. The three digits slowly became wet, covered in Rarity’s arousal.

She stopped her work to undo the belt of her gown while her other hand kept massaging her left breast, pinching her nipple occasionally, sending shudders of pleasure through her body. Her nipples where one of the most sensitive parts of her body.

Her mind decided to add one more pony. The naked Sweetie Belle was approached from behind by an alabaster unicorn. Rarity closed her eyes and let her imagination and desire run free.

In a swift motion, Rarity wrapped her arms around Sweetie’s waist, pushing her slender body into her own, her lips touching hungrily to the younger pony’s neck. Sweetie Belle hummed in pleasure, tilting her head Moans escaped her one by one as Rarity’s lips - her sister’s lips, kept exploring every inch of her neck.

Rarity guided both of them to Sweetie’s bed, bending her sister over, leaving her rear in display. With one hand, she moved the silky tail of her sister to the side, allowing herself a clear view of her sister’s sex. The lips partly open in arousal, inviting Rarity to explore.

She would breath deeply, and the smell would be sweeter than any fruit there has ever existed.

Rarity licked her middle and ring finger, coating them with her saliva before lowering the hand to where it was supposed to be. The two fingers found their way to Rarity’s entrance, encountering little resistance before penetrating the mare.

Rarity got closer, her tongue out, ready to have a taste of her sister. She would start from the little love button and lick her way to the dock.

Sweetie’s moans of pleasure fueled Rarity’s actions, she stopped her tongue mid lick before thrusting it inside her sister, reaching as deep as she could, wriggling it around, her sister’s sweet nectar trickling down her chin, landing on her exposed tits.

She could hear her sister’s excitement, but she wanted more. She pulled back, running her tongue over her outer lips one last time and locked her eyes on her next target. She wrapped her sister’s clit between her lips.

Rarity’s right hand hastened its pace, increasing her own pleasure.

Sweetie was becoming more vocal, her legs slowly losing their strength as her sister greedily sucked her love button.

“Rarity...”

Rarity’s eyes shot wide open, surprised by her sister calling her again. Her left hand shot up to her mouth to muffle any kind of sound that could come out from it while the right one kept doing its job on her core.

Sweetie talked again, but Rarity didn’t pay attention to what she said

Knowing that her sister was right behind this door, so close to her while she was so close to finishing. It sent a wave of pleasure all over her body, increasing her sensitivity. She arched her back against the door, her fingers moving furiously in and out of her vagina.

“Rarity?”

In Rarity’s mind, Sweetie’s words morphed into cries of pleasure . She bit her lip, using her left hand moving away to play with her breasts. She could feel her orgasm close, her pleasure reaching levels that she rarely experienced.

Rarity came hard, with her fingers deep inside her, a shuddering sensation running all over her body and a low groan the only sound escaping her lips.

Complete and utter bliss. Rarity kept her hands in place, their movement at a gentler pace, riding the waves of pleasure.

Rarity managed to hear her sister mumbling something about falling asleep, followed by steps moving away.

Rarity remained there, sitting on the floor, trying not to think of what she had just done. She looked down, at her hand covered in her juices. A sigh escaped her before she stood up and moved to the bathroom.

She washed her hands and splashed some water on her face. Her eyes looked at the reflection in the mirror.

‘You did it… You said you wouldn’t… You swore that you wouldn’t do it!’ Rarity’s sight blurred as tears filled her eyes. ‘Even worst… you enjoyed it… It excited you more than anything… Thinking about Sweetie like that… What’s wrong with you?!… What’s wrong with me?!’ The tears ran free, and she wiped them with the back of her hand. ‘Do you even regret what you just did?’

The thoughts of what just happened kept swarming in her mind for a long time, as she struggled to fall asleep, the mental picture of the horrible, immoral, incredibly arousing act she has imagined kept hitting her no matter how hard she strained to suppress them.

Rarity groaned, hiding her face on the pillow from her burning shame. Even as she woke up, the first thing that came to her mind was the image of her sister naked, moaning, begging, and no matter how she would try to deny it, it still aroused her.

She sighed, hoping she would have the strength to ignore it for another day.

She left her bed and started getting ready for the day, starting with a shower which she hoped would only consist of cleaning herself and nothing else. After drying herself and styling her mane, Rarity put on some comfortable clothes and was ready to leave her bedroom.

She was cautious, opening her door slowly, relieved, yet slightly disappointed, to find that there was no naked sister on the other side.

A quick trip downstairs and Rarity could hear the usual humming of her sister, just like every other morning. She managed one step inside the kitchen before stopping dead in her track. Her heart rate hastening and her face warming up when her eyes landed on the beautiful mare that was sitting on the table.

Rarity couldn’t help but stand still while looking at her sister drink hot chocolate while reading something in a magazine for who knows how long. The scent of fruits barely registered in her mind.

Sweetie finally noticed the presence of someone else in the kitchen, lowering the mug and paper before flashing a big smile to her big sister.

Rarity couldn’t help but divert her gaze away from her sister’s. It was awkward. She couldn’t look at her directly without thinking about last night.

“Good morning, Rarity! How are you doing? Feeling better than yesterday?”

Rarity looked up for a second before looking away. “W-what?” She inquired, getting closer to the table and taking a sit.

Sweetie frowned. “You told me yesterday that you weren’t feeling fine.”

“Oh, right, right. I just… I woke feeling so good this morning that I forgot about yesterday.” She said, following it with an awkward laugh. It would be impossible for her to forget anything about yesterday any time soon.

“That’s... good to hear.” Sweetie said, eyeing her sister. “You know you can talk to me, right? If there’s something bothering you...” She placed a hand over Rarity’s. “I was really worried yesterday.”

Rarity pulled one of Fluttershy’s tricks, hiding behind her mane to cover her blush. “I’m fine.” She pulled her hand away from her sister’s.

“Alright.” Sweetie stood and took the dirty dishes to the sink. “I left you some chocolate, but I didn’t make any breakfast. Sorry.”

“It’s no problem, I can make some myself.”

“Well, I gotta leave now. Have to go meet the band and ask for help moving the amps to Diamond’s home.” Sweetie rounded the table and stood next to Rarity. “Bye, sis.” She said, leaning forward and pecking her sister’s cheek quickly. “Have a good day!”

The front door of the boutique opened and closed, leaving Rarity alone.

The mare remained seated, her forehead resting on the table and a hand on the cheek that had just been kissed. Had that small kiss really sent shivers down her spine and covered her whole body in goosebumps just a moment ago?

Since yesterday, Rarity had realized that she was dealing with some complicated feelings towards her sister, but for them to reach this extent...

‘Oh Celestia. What am I going to do? It just keeps growing. This… this can’t continue. I have to do something. I have to get her out of my mind before I mess things up really bad.’

Author's Note

Yay, a new chapter!
Thanks to ChudoJogurt.