The Bet

by CrimsonEquine

Rating: mature
Tags: Scootaloo, My Little Pony: Friendship is Magic, Dark, Rainbow Dash, Romance, Sex, Rarity
Length: 1517

Rainbow Dash and Rarity enjoy a bet for a fun get together at Carousel Boutique.

Rainbow Dash and Rarity enjoy a bet for a fun get together at Carousel Boutique.

Requested by superfun

Published 2017-06-17 06:20:07 UTC
Last updated 2017-06-17 06:20:07 UTC

The Bet

Rainbow Dash smirked happily, she was about to flip a quarter to see who would win this little bet. It wasn’t just any plain old bet though. This was a way to get Rarity to do a favor for her. And since this was a completely randomized coin flip, there was no way to back out. Something so luck based, and yet It shined with its silver sheen against the evening sun that went through the window of Carousel Boutique. It flipped over several times as it skyrocketed into the air. Rarity cried as her face contorted into a frown in slow motion. Rainbow smiled in glee as the quarter soared into the sky without a care in the world. Then, it fell down on Rainbow’s hoof, it was the resolvement that everypony was waiting for.

The end of Rarity’s mouth spread down to the floor for she had lost everything. For now, Rainbow Dash’s bet had come to fruition and there was no escape. Rarity squeezed her face’s cheeks, they smooshed into her mouth at the stressful coin toss, and she gave out a defeated cry. The coin had landed with the front face of Mayor Mare and her stupid grin.

“Haha! Yes, I did it!” said Rainbow Dash happily. “I won the bet, and now you have to do anything I say Rarity.”

Rarity looked to the refurbished carpet of her boutique and sighed in defeat.

“Well, what would you want of little old me?” she said.

Rainbow walked calmly to the exit and locked it with a simple click. She lowered the light clicker, causing the place to darken a bit. Rainbow Dash went and pulled out a cardboard box that was hidden beneath one of the burlesque sofas sitting in the living room. Out of it, was a giant strap-on dildo, it’s rainbow color specifically created just for this moment. For Rainbow had been waiting just for this in order to finally get what she desired. That would be to finally claim her Rarity once and for all.

“R-rainbow, why do you have that, you must be jesting right?” said Rarity.

Rainbow strapped it on and made a smile that was filled with joy and content. It wrapped around her waist as tight as possible, so it wouldn’t come off unnecessarily.

“Oh Rarity, I want you to be my sex slave for a day.” she said gleefully.

Rarity scratched her head, not only did Rainbow Dash just unveil a sex toy right in front of her. But, now she was making this crazy bet something that she never would have thought would become. Obviously, there was no way she would go through with this. But, something seemed off about Rainbow, that made her feel terrified.

“What do you mean Rainbow, you want me to be a “sex-slave”?”

Rainbow Dash stood there, watching with those big reddish eyes of hers.

“A bet is a bet Rarity, you have to do what I say.”

Rarity looked at her friend with questionability, was this really happening or was this a joke?

“You can’t be serious Rainbow, I don’t seem to understand this prank your doi-”

Instantaneously, Rainbow Dash slipped the strap-on right into Rarity’s warm snatch. Rarity screamed as Rainbow overpowered her as she tried to scramble her off. But, as she struggled to escape from the dildo currently penetrating her, Rainbow Dash licked her right ear. Rainbow felt that it was so good to dominate this little pony, she had absolutely no power to fight back. Rarity screamed a bellow of a cry before dragging herself against the floor with all her strength, but Rainbow just pulled her back. She ripped off pieces of the floor, trying to make the nightmare end before it could even start. But, Rainbow Dash had her pinned onto the ground where she had been violating Rarity with her brute force.

Rarity started crying loudly, begging Rainbow to let her go. She had felt there was no control left for her, and the only option was to use her magic when the reality had become too real. She could feel her assailant licking her without her permission, she could feel her depths being violated without recourse or time.

“Please make it stop, anything please, Aggcchh, don’t do this to me.”

Rainbow Dash replied by biting her Rarity’s ears, nibbling it down onto her helpless prey.

Rarity’s horn lit up and Rainbow simply hit her horn with her athletic strength. It broke into pieces and made Rarity scream in agony. No matter how much Rarity would scream, no matter how many times she begged Celestia to save her. Nothing would change, she was still pinned down, her forehead in severe pain and blood seeping over her face.

“I’m sorry Rainbow, I’m sorry, I’m sorry, I’m sorry~” she said over and over again, pleading with all her heart to make this end.

Then, Rainbow Dash spoke.

“Now, who won the bet, if you do as I say, I’ll let you have more movement, but if you fight me, I will hurt you.”

Rarity gritted her teeth as pressure went down on her body from Rainbow’s force. The overwhelming disgust mixed with fear had caused her to lose herself in screams, for she had no power and no horn in less than five minutes. Rarity hadn’t the strength to fight back a pony who could make Sonic Rainbooms in her sleep. But, she had to try something, this was more than disgusting. This was all that was wrong, and she had only one moment to make it count.

Rarity felt the weight of Rainbow Dash come off a bit, and Rarity could stand up. A bit of blood seeped out of her from the oversized plastic dildo and dripped onto her fur.

Now, Rarity stood up and grabbed the bottle of wine that the two were sipping as friends a few hours ago, broke it to pieces with a powerful strike onto the table and held the broken glass at Rainbow.

“Stay Back!!” she said angrily. Her other hoof holding the open wound from her broken horn. “Don’t come any closer, monster!”

“Monster, what do you mean, didn’t you agree to this Rarity?”

She went closer.

“Stay BACK!” Rarity exclaimed.

Rainbow Dash went quick to her, she slapped the bottle away and struck down Rarity with a powerful blow onto her face. Rarity went reeling onto the floor, she coughed out a bit of blood and lay on the ground in defeat. Rainbow was still smiling, so happy that she could be a little part of herself once in awhile. And she could add another one to the collection, Scootaloo was getting a little tiring after a while. And Rarity was just so sophisticated that she just had to have her, all for herself. There was no denying that her methods were crude, but they always got the job done.

“What did I say about fighting back!?”, Rainbow kicked her in the stomach, causing Rarity to cradle her stomach from the severe pain. She coughed more blood and felt like she was going to die.

Rarity could swear she heard a crack sound in her brain. It was the most unusual thing to hear. It seemed so funny to how her friend Rainbow Dash had been treating her and now a simple get together as friends had turned into a violent catastrophe. She started to laugh heartily, coughing blood and teeth from her gums.

“Why are you laughing, how is this at all funny cutie pie?” said Rainbow warmly.

Rarity continued to laugh uncontrollably with a bit of difficulty with her broken bruised jaw and all.

“That’s alright sweet pea, I’ll just have my fun while you laugh all you want.”

Rainbow went atop of Rarity and stroked her voluminous mane before sticking into the puffy white vagina again with her dildo. She was all hers now and ever will be.

-

*-*

Rarity trotted along the road to Carousel Boutique. Today was another day Rainbow Dash would pay a visit to her, and at this point, she learned to enjoy herself. Though, if she had any control over anything, she would've ended Rainbow Dash in an instant, but she had not power to do so anymore. Her horn had healed pretty well albeit still broken, and she somehow convinced everypony that she hurt herself by accident. Many times she had wanted to tell the truth about Rainbow Dash, many times she wanted to be free from this insanity. Still, she had her fashion, and her business endeavors , so all was not lost. All she had to do was take her madness like a good girl.

Rarity opened the door to Carousel Boutique and saw Rainbow Dash standing their waiting for her with a strap-on. She smiled as her "partner" goaded her to come in. The door closed behind her and she went into position like a good sex-slave.

"Hmm Hmm, now who is my little princess." said Rainbow happily. Towering over the broken Rarity as she awaited instructions...