Dash lay on her back, looking around. Her legs were strapped to four corners of the bed, her wings strapped to her sides. If she was being honest, the only parts of her that weren’t strapped down were her head... and her shaft. No condom, no binding, nothing. Standing over her, staring down at her, was Amore, the Princess of Love from ancient times. Amore herself was wearing... very little. Her breasts were barely covered by a very, very small bikini top and all she had covering her groin was a loin cloth.

Speaking of breasts... Dash’s mind boggled at how Amore wasn’t bent over walking on a cane. Or on all fours at all times. Her boobs were bigger than her head. As Amore turned to walk away, Dash's eye’s followed the movement. She walked like she had a purpose. Or something between her legs. When she bent over a chest, Dash blinked. Amore had a cock. Maybe. She definitely had two balls dangling in front of her lips, but from what Dash could see, there was no cock. Speaking of lips, those mons and that pucker were big enough to engulf Dash’s head.

“Am I going to drown in pussy tonight? This is a dream right? Can that happen?” she asked herself as Amore turned around, holding a collar, leash, lube, and a ball gag. “Um... uh... what’s...” she stopped when Amore pressed her finger against Rainbow’s lips.

“Shush now.” Amore said and Dash froze as the collar went around her neck. “You like being in control. You like having the power to make a mare do what you want. With me, you won’t have that.” Amore said and just the thought of it made Dash hard. She didn’t think she’d regret getting tuned on by a mare. Until she felt something clasped around the base of her shaft.

“What’s that?”

“Insurance. Can’t have you blowing too soon.” The Princess. “Now, hush.” That order was accented by the not ball gag going into Dash’s mouth. It was a dick gag. There was a hole all the way down the middle to make breathing possible, but the fact that the head of it was at the back of the throat made swallowing difficult and talking impossible. The leash hooked to the collar and Dash was tugged up just a little. Then Dash felt it. Amore’s shaft. It wasn’t where she really wanted it. Her eyes squeezed closed as the Princess of Lust plunged her hard shaft into Dash’s rear end. She couldn’t yell out, considering she had a strawberry flavored dick in her throat. Moaning was possible, even if it was in pain.

She’d never had her ass stretched this much, and each thrust felt like Amore was going to drag her insides out of her ass. Her medial ring slapped at Dash’s pucker with every thrust and the speedster would swear up and down Amore was trying to split her in two. It wasn’t over quick, but Dash definitely felt it when Amore released into her ass. She saw it too. Barely able to see herself out of the corners of her eyes, since bending her neck was impossible with a dick touching the entrance to her stomach, she noticed that her stomach did bulge out a little.

“Now for the best part. Do you know why Futa mares are so much fun?” the Princess asked and Dash answered no just by moving her eyes. Turning her head had proven impossible. “Because...” Amore said as she leaned down, her shaft sliding up just a little. “They still have pussies.” She whispered and Dash yelped around the throat dick as a shaft bigger than her own plunged into her womb.

“Wait... this is a dream... I know it is. Twilight assured me that no matter how trained someone was, they couldn’t handle having something shoved into their throat without gagging so much it hurt. And they couldn’t handle being stretched that much without excruciating pain. I’m still a virgin in the waking world.” Dash thought and Amore smiled.

“Bingo. You figured it out.” She said as she pounded Dash’s marehood. “I’m the Princess of Sex, not the Princess of Rape or ruining lives. You promised your mare-friend Fluttershy that she could pop your cherry, and she will. But for tonight...” Amore paused, reaching between them and slapping Dash’s cunt as she pounded in. “This is mine.”

Dash felt her eyes roll into the back of her head as Amore had her fun. She couldn’t get pregnant in a dream so this was fine. Amore could pump her so full she was a cum balloon and she wouldn’t get pregnant. Every rough slap, every deep grind, every wet plap, Dash felt herself drifting. “Don’t pass out in the dream world, Rainbow Dash. If your dream self goes to sleep, your waking self will stay asleep.” Amore said, reaching up and slapping Dash’s tits. Hard.

“Ow! Jeez...” Dash said, her own shaft now soft because of the abuse. “I was going to use that on you but...”

“No you weren’t.” Amore interrupted and Dash looked at her. “You’re my bitch here, Rainbow Dash. You do nothing without my say so in this world.”

“Prove it.” Rainbow said and Amore stopped thrusting, staring down at Rainbow Dash.

“Did you just challenge me?”

“Yes I did. Prove that you can make me do anything or nothing.”

“Alright. Fine. Challenge accepted.” Amore said, removing her shaft from Dash’s cunt. The blue mare shivered and suddenly found she could move again.

“Hey, when did the...”

“It disappeared some time ago. You were too enthralled by getting fucked to notice.” Amore said and Dash rubbed her throat.

“Did I swallow it?”

“No. It vanished. Now then, our wager. If I win this bet, you will be my personal slave every night for the next ten years. No complaints. No asking Luna for help. You. Will. Be. Mine. Understood?” Dash nodded.

“If I win, you’re mine. Here and in the waking world. For ten years. Even if I make you pop out a kid or two.”

“Deal. I’m first.” Amore said and suddenly Dash was upside down, her wings strapped to her back, face to shaft with Amore. She started to ask what she was doing when her own shaft was encased in warm, silky flesh. Amore had swallowed it completely, her tongue doing all the work. Not to be out done, Dash swallowed hers, trying to copy what the Princess of Sex was doing. She was apparently doing well, but Amore did better. Dash tensed, her lips squeezing around Amore’s shaft as Dash herself exploded down her dream partner’s throat. Immediately, Amore dropped her onto the clouds and Dash shrank. Looked up at Amore, confusion clear on her face.

“Every time you orgasm, you will shrink. The same can be said for me. If you become too small to pleasure me naturally, I will do it myself.” Amore said and Dash glared up at her before flipping around and engulfing Amore’s cock in her throat again. The sudden warmth of Dash’s throat caused an orgasm that filled Dash’s stomach. As well as a shrink worse than Dash’s.

“Ha. I made you cum harder.”

“We are not done.” Amore snapped, pushing Dash over and angling herself. Dash smirked and took initiative, grabbing the Princess’ hips and plunging herself home, deep. The bulge she was expecting. The immediate orgasm from how tight the Princess was, she was not. Amore’s stomach bulged from the sheer amount of cum, up until Dash was too small to actually plug the Princess’ cunt with her shaft. “Well, that was quite the orgasm. I think I won this round.”

“Not even close.” Dash said as she flew up and angled herself.

“Wait... what are you doiiiiiiiiiiiiiiiiiiing!?” Amore squealed as Dash plunged her now very much smaller shaft into Amore’s dick. The Princess couldn’t help herself. The immediate intrusion into a place that had never been penetrated before, as well as the repeated thrusts from the small mare, forced an orgasm she’d never experienced before. Dash tumbled to the ground, absolutely covered in the Princess’ jizz, but Amore had definitely lost. Her new size was barely as big as Rainbow’s tit.

“I win.” Dash said and Amore stared up at her, barely registering what had just happened.

“Did you... just cum... in my dick...?”

“No, but you came on mine. I win.” Dash said again, picking up Amore with a shaky hoof. “A deal’s a deal. Ten years. You belong to me Princess. My own personal cum dump and baby factory. To do whatever I want with.” Dash said and Amore paled slightly. She was... only slightly worried about that statement.

Author's Note

Sorry, this one's kinda short. I couldn't really think of how to do it but it's pretty much PURE SMUT. Enjoy... maybe. I dunno.