My Not-So-Little Pony

Cass opened the suitcase on the bed first, so that Sam could look inside. There was a pair of bridles, hoof-gloves for the hands, latex straps to bind the legs, various brightly-colored wigs, horse-tail butt-plugs, temporary press-on tattoos...and, snuggled next to a large bottle of lube, a large dildo shaped with loving detail like a horse's phallus, the rubbery body smooth and dark, flaring out into a very inhuman head. Sam registered the strap-on harness...the bit and blinkers...and she had just one question.

"So...which one of us is wearing the horse cock?"

Which was how Sam ended up on her hands and knees, a bit in her mouth. Well, on her hooves; Sam's hands were clamped into hoof-gloves, her calves strapped to her thighs with three leather straps apiece. On her head, a long cotton candy pink wig hid her natural hair, and a temporary tattoo of three pink and cyan butterflies on her left ass cheek. Sam winced as Cass slid the butt plug into place. It wasn't particularly large, but she found herself unaccustomed to the weight of the pink tail.

"Oh, Fluttershy," Cass said as she ran her hands down Sam's flank. "You're such a pretty, pretty pony...don't worry, Applejack will take good care of you..."

Sam was not into My Little Ponies, or any of this furry nonsense. However, for a cuntful of cock she was prepared to drag a cart around the block. That being said, the backbrace with the soft stuffed wings felt a little over-the-top. Cass licked her fingers and rubbed Sam's cunny from behind.

"You're so hot! You must be in heat. Don't worry...I'll put some foals in your belly..."

A snort was her only answer...and then Sam felt the head of the strap-on rub against her shaven cunny.

It felt a lot bigger than she had thought. A queasy feeling settled on Sam, and she wondered if she hadn't bitten off a little more cock than she could fuck. Anxiously, she pawed at the bed with her hooves, wondering what her recourse would be if Cass got a little too forceful. The tall woman had left off the gloves and bridle for herself, so she had her hands free...and an advantage in height, weight, and reach. Sam had admired the bulge of muscles in her long arms, legs, and shoulders, evidence of regular and intense exercise...

...and then the flared head of the horse cock dildo, dripping with lube, found the entrance of her pussy, and Sam found she could think of nothing else.

The rim of the head pressed inside first, but the flare was too big for Sam's pussy. At least, until Cass slid two fingers into the sopping wet slit and tugged downward.

"Auurrgh!" Sam groaned as her eyes shot open wide...and the sound choked off into a gurgle as the impossibly thick head pushed into her cunt, and was followed by the shaft. Sam found she could scarcely breathe as Cass slowly pressed her hips forward, more and more of that horse-cock stretching Sam's tunnel, past the point of pain as the dick pressed against the thin skein of flesh that separated it from the plug in Sam's ass.

She had never been so stuffed, so full...and contrary to all the porn she had watched and jilled off to, to all the erotica that had spoken of the ecstasy of being taken in the cunt and ass at the first time, that said that bigger was better, that women wanted to get fucked by horse cocks...all Sam could think about at that moment was a bright spark of pain and the certain, absolutely certain knowledge that this was too much cock, too fast.

"Oh Fluttershy! My love!" Cass said as she slammed her hips forward.

Sam couldn't even scream. The base of the strap-on ground against the tall woman's clit, and the **** of the thrust pushed Sam across the bed. Her knees burned, and she tried to paw at the headboard with her hooves...but Cass caught her arms and pulled them back, forcing Sam to dangle, the weight of her body now on the horse cock dildo that threatened to split her cunt in two. Grunting and moaning, Cass wiggled her hips, the better to stimulate herself...

...and for Sam it was agony. She was unable to pull away from the bigger and stronger woman, unable to speak with the bit in her mouth, and her pussy felt ready to burst. The terrible grinding felt like it mashed her labia into a bloody mess...and all that Sam could hope was that Cass would get her pony-fix done and cum quickly.

"Oh oh...whinny for me!" Cass whispered hoarsely. "Let me know you want it, darling! Let me know how much you love Applejack's big fat cock in your tight pony pussy!"

Hating herself, Sam tried to whinny. It came out as a strangled moan, the bit **** back in her mouth, tongue pinned to the bottom of her mouth. The tip of the horsecock hit deep inside of her, and the pain as it banged around brought tears to her eyes...Sam wondered then how many stitches she would need, before this night was over...

"Ah...agh....Aaaagh!"

Cass grunted and shook. Her fingers dug in on Sam's forearms as ten pints of pain...and then Cass let her go, and Sam surged forward, so her forehead banged forcefully against the headboard.

As Sam lay on the bed, stunned, the cock pulled out of her with a wet schlorp. Dimly, Sam was aware of Cass' heavy breathing...and the tug as the tail popped free.

Then she felt Cass' thumb pry her asscheek up, the head of the strap-on against her pucker.

"Ooh, somepony is loose and ready for me..." Cass said.

Sam whimpered. Before this night was over, somepony was going to need surgery.