Fluttershy's Fantasy (Patreon)

You rolled over off of Fluttershy, flopping onto the bed, panting in your afterglow. You looked back over at her. The room's minimal lighting showed merely the outline of her form, but damn what a good outline it was. Hefty, round tits, wide-set breeding hips, and juicy, silky thighs offset with the narrowest waist. She had the body of a porn star juxtaposed with the personality of a skittish kitten. In other words, she was perfect. There were some days you just couldn't believe you were lucky enough to have the honor of fucking her.

"Was it good for you, hun?" You asked her as your breathing steadied.

"Oh... Yep! Uh-huh. It was great... All fifteen seconds of it..." She replied.

You nodded and snuggled up to her warm body. Your orgasm had apparently sapped any energy you had, as you began drifting off to sleep in the comfort of your bed. As you faded out of consciousness, you were pretty sure you could see Fluttershy reaching for her phone...

You wake up some time later. It's now pitch dark. God, how long were you out, you wondered? You fumble around in the dark, looking for your phone to check the time. You finally find it and press the button to light up the screen. A few minutes past midnight, damn. Hold on... this wasn't your lockscreen. This was Fluttershy's phone. She had a notification on the screen, a text from Rainbow. It said "Ill be right there lol" What was that about? Why was Rainbow coming over so late? 

You knew you shouldn't go through her phone. But that sure didn't add up. You sighed to yourself as you swiped open the lockscreen and saw the last few texts she had exchanged with Rainbow, just an hour ago. 

F: I dunno what to do anymore Rainbow. He just... can't get me off. His cock's just too tiny and he finishes too quick.

R: Lol i told you not to date a guy like him, he reeked of virgin ever since I first laid eyes on him

F: He really is so sweet and I like him a lot, but I just need to get... fucked, you know? I've been masturbating so much but that doesn't satisfy me enough. I need to be... manhandled, you know what I mean?

R: Lmao I hear ya. I got an idea tho.

F: Which is?

R: I still got some of that potion twilight gave me that makes a girl grow a cock so I could come over and use that to dick you down

F:...Okay. I know I shouldn't but that just sounds wonderful. Come on over right away. He's asleep so we gotta keep it down though.

R: Ill be right there lol

...You couldn't believe what you were reading. 

You shoot out of bed and start to head downstairs. But before you get more than a couple of steps down, you stop in your tracks. The stairs give you a vantage point to see into the living room, where you were able to see what you already feared...

Fluttershy was bent over on the couch, completely in the buff. She knelt with her legs spread wide, trembling out of either fear or delight, or possibly both. She'd submitted, ready for Rainbow to take her from behind.

Beside her was Rainbow Dash, also nude, exactly as you'd expected. Her body didn't have the unbelievable curves that Fluttershy did. While she wasn't flat by any means, her modest breasts paled in comparison to Fluttershy's massive udders. However, her toned, athletic body had its own sort of appeal. But this time, she had a new, curious addition: hanging between her legs was a colossal, thick cock, accompanied by a heavy, low-hanging nutsack. 

Rainbow bit her lip as she polished her fat rod with her left hand, eyeing up Fluttershy's prone, nude form with approval. Once she'd gotten it nice and stiff, the monster cock throbbed at its full length, easily three times bigger than yours.

Rainbow didn't even bother to offer a warning before sliding her erection into the quivering, eager pussy Fluttershy had presented her with. Both mares let out a groan of satisfaction as Rainbow worked herself in. The look of pure primal lust in Fluttershy's eyes was one you'd never seen from her in all the times you'd had sex with her.

Now inside her prize, Rainbow bucked her hips slowly a few times, gradually picking up speed as she found the rhythm. Each thrust was accompanied by a short, sharp grunt from Fluttershy.

"God, you're so tight!" Rainbow exclaimed after a few bucks, as she reached around to grab two large handfuls of Fluttershy's generous tits. "Makes sense. Your little shrimpdick boyfriend definitely doesn't have the meat to stretch you out..." 

"No, Ah!" Fluttershy squeaked between her moans. "He definitely doesn't..." She flatly stated, accompanied by the sound of Rainbow's heavy balls slapping loudly with each thrust.

"He never fucks you this hard, this deep, does he?" Rainbow asked breathily as she fucked deep, all the while manhandling your girlfriend's giant tits, as if she were getting off on the question. "Too much of a wimp to... Oh~... give you the railing you need..." 

"Nnf... He probably would have cum by now..." Fluttershy guesses. 

"Haha, yeah. No one can fuck a mare like Rainbow Dash can!" she arrogantly referred to herself in the third person as she returned her hands to Fluttershy's hips. "Buckle up!" She ordered, before picking up even more speed. 

"Ahh!~! Fuck!" Fluttershy gasped loudly, before burying her face in a couch cushion to muffle herself. Language like that was definitely something you'd never heard out of her. 

"Nnnnf...I'm...Ahh...gonna... nut!" Rainbow exclaimed as she humped as hard and fast as she could, her fat weiner visibly throbbing whenever she slid it back out. Fluttershy was making similar noises of orgasmic delight. 

Rainbow, finally spent, slid her endowment out. It was soon followed by her load, which oozed out of Fluttershy's pussy. Both mares panted heavily. Fluttershy was the first to break the silence.

"Oof... I'd almost forgotten what it was like to have an orgasm that wasn't from my fingers..." She breathed. Rainbow grinned, pleased with herself. 

"Any time you need a good ramming, hit me up. Just hope we don't stretch you out to the point where you can't even feel your boyfriend's little pin-prick..." Rainbow mused as she headed around the corner. "Gonna grab a quick shower." 

When she turned up the stairs, Rainbow saw you standing there, watching wide-eyed. But there was no surprise or fear on her face. Instead, her smug, self-satisfied grin returned. 

"Hey dude." she greeted you shamelessly. "Don't worry about not being able to get Flutters off. That's my job now! Haha!" She laughed as she shoulder-checked you to squeeze by.