You always transform a little bit when you go into heat. Your ears change, you grow a tail, you sprout a bunch of extra hair all over, and your clit gets big and swollen, aching and twitching and wanting so bad to be buried in something soft and wet. You can’t stop thinking about your girlfriend’s pussy, playing with yourself, drooling all over yourself while you imagine spreading it open, fingering the swollen folds and the wet, clenching hole.

“My big dumb puppy,” she says affectionately, “are you in heat again already? Look at this, look at how wet and swollen you are.”

She reaches between your legs to take your clit between her fingers, gently stroking it through the hood. You moan for her and rock your hips into her touch, completely at her mercy.

“Poor baby,” she laughs, “you wanna be in my pussy so bad, don’t you. You wanna fuck my pussy with this hard little cock.”

Fuck, fuck, you love it when she calls it that. It throbs in response, throbbing between her fingers as she teases it.

She lies back on the bed and you eagerly mount her soft body, pressing your wet cunt into hers and rocking your hips, rubbing your big swollen clit into her pussy lips with urgent whimpers of relief.

“Good girl… Your poor little cock gets so hard, you just need to rub it all over mommy’s pussy don’t you?”

“Uh huh,” you moan, with your hips rocking back and forth, humping her sloppy wet pussy, grinding your aching little cock into her warm wet folds.

“Oh I feel you twitching, baby,” she says, giggling. “You gonna cum? You gonna cum on mommy’s pussy?”

You nod your head stupidly, tongue lolling out of your mouth as you whine and moan, cunt clenching hard as you cum into her pussy.

You slump down on top of her, panting. “You feel better, baby?” she purrs. “All tired out from using mommy’s pussy?”

You groan into her breasts, cunt still throbbing, clit still aching and swollen with your heat. Your hips give a few tired thrusts, almost involuntarily, and her pussy still feels so good, suddenly you’re back to fucking her again, grinding your cunt into hers and feeling your swollen little cock gliding through her soft wet folds.

“I need… I need to keep cumming,” you groan.

“Go ahead baby,” she croons, “use mommy’s pussy. I know you can’t help it, I know you’re just a big dumb puppy in heat and you need to keep humping and cumming. Does it feel good when you fuck my pussy?”

“Mommy,” you groan.

“Yes baby…”

“Mommy, mommy— mommy—” Your babbling cuts off in a keening moan as you cum for her again, clenching and shaking in her arms. You’re ready to stop and catch your breath but she whispers urgently, “Keep going baby, keep going, I’m almost there.” Your hips snap back into action with a groan, you go right back to humping her cunt, rubbing your aching cock into her clit, gasping from exhaustion and overstimulation but nothing would make you stop while she’s moaning like that, while her pussy is so close to cumming against yours.

“Good girl,” she gasps, “good girl,” wrapping her arms around you, holding your body close to hers. “I’m gonna cum, you’re gonna make me cum.” She cries out and then she’s cumming so hard and loud for you, throbbing and clenching all over your poor little cock, sending you into a third orgasm that has you arching your back and howling.

You collapse on top of her, panting and shivering. “Good little doggy,” she says, whispering into one ear and scratching behind the other. “Such a good girl for me. I love feeling you cum on my pussy, it turns me on so much.” You whine into her neck. Your wagging tail thumps against the bed, and your cunt starts aching again, and your exhausted body starts to move against hers again, needing her pussy again. Her soft laughter tickles your ear.