You want this more than anything else. Why would you try to leave or resist or stay human? This feels good, right, perfect. Your small self trembling in anticipation, as Barsein walks back into the room. His hooves hitting the hard wood floor, trotting over to your corner, and setting down a pile of arrows. Practically discarding the supplies he gathered, and putting his focus entirely on you. Being the person he prioritises over everything makes your heart skip a beat, you mean so much to him.
"More in the mood?"
"Yeah. I am."
Your reply is met with the centaur taking a further step forward. You still on the ground, and him now raising his front legs to rest against the room's wall. Positioning his back half as close to you as he can manage. Horse dick entirely out of its shaft. Tip dribbling pre, flared equine shaft waiting for you. It's inviting you to wrap your lips around it, give it a taste, pleasure the big stallion that's brought you home.
You can't so no to an invite like that. Crawling forward, your hands rubbing along the sides of the shaft. Stroking his spotted member, feeling the over twenty inches of horse cock in your very hands. You couldn't fit this in your mouth, but, you want to. Your lips stretching to their limit as you kiss at the tip and press forward. Choking yourself on his dick, and not feeling even a second of fear. His cum, and the scent that comes with it, dulling your mind and helping you for the task ahead. Your tongue scraping against his cockhead, while you press on. Stuffing more and more of this stallion’s cock into your mouth. Feeling it fill you as your cheeks are forced to bloat, and your head begins to grow.
Though it's not just your head. Despite being in such a wimpy and weak body, your entire being grows. Proportions preparing for your new self, chest, shoulders, arms. All getting bigger as you keep suckling at your partner’s cock. The top of your head pressing against the bottom of his fur, mouth now comfortably wrapped around his gargantuan dick. You're able to serve him all the better, able to go even deeper now. To feel the head of his shaft tickle your throat, and spill more of its juices inside. You don't even focus on your own cock, not that you need to. Tasting this stallion’s pride keeps your dick hard and leaking, keeping you on edge until the both of you can finish.
And finish you try. Your head moving back and forth, hands still stroking the back half of his dick. One grabbing onto his coconut sized balls and fondling the fur. But still he won't cum, and the more you try to push him over that edge, the more it makes sense. Your body settling as fur begins to take over your lower half, and Barsein trots back to free your mouth. Your body no longer under his, the strong centaur just looking at you with a kind smile, and you already understanding what is to come. You getting to your feet and turning. Putting your hands against the wall, and pressing your ass out to be claimed.
Thanks to your earlier treatment, your ass has grown out and is big enough for him to fit inside. The centaur walking up to you and over you, cock sinking into your rear with his steps. Planted in deep, and sparking further changes for the two of you to enjoy. Dark blonde fur covering your rear, a small nub that turns to a long tail appearing above it. Your two legs gaining their own coat of protection, feet fusing together into hard nails and hooves. All of it happening so quickly, and then the rest so slowly.
While your ass is satiated by his cock, that feeling starts to become distant. The pleasure is still bubbling in your mind, but something is off, even as he bucks into you. His flared head deep inside you is moving with controlled thrusts. Your moments of confusion start to become moments of clarity, as you see the problem. You're gaining your own tauric form, your rear pressing back to allow space at the front. Opening getting bigger to take more of his dick, and allowing the lower body of a horse to stretch forth, and two new front legs start to grow.
As your new form comes to you, your body becomes taller with it. Your back now resting against Barsein's meaty chest, his arms wrapping around you, and head kissing your neck. Comforting and appreciating you, his new husband. 'That's a nice look.' 'Ain't it better than being human?' 'Don't need to remember anything else, Vilac. You're my mate after all.'
Vilac, your new name. It's as if it’s always been with you. As if you never had another name to be called. Your two front legs now reaching the ground, strong hooves, the same as your back pair. Ready to trot and run, to hunt and help. You almost let out a whinny as your ears stretch to a point and nose slightly expands. Your husband continuing to drill himself into your ass, and your small cock transforming with the lovemaking. Balls rapidly filling with horse spunk, bloating to those same coconut proportions of your better half. Dick pressing forward, going to ten, then fifteen, then twenty feet. Tip flaring, libido reaching new heights, and the both of you finally getting release. Him filling your ass, and your own load contained in the pile of cloth underneath you.
"Can always count on you getting me off, Vilac."
"Anytime, Barsein."
You tilt your head, looking your husband in the eyes, and giving him a long kiss. The last dribbles of your spunk leaking out, and the hunter trotting back to exit your ass. His juices spilling from your well used hole, joining your own pile on the cloth below. Barsein going over to his gear, putting away the arrows he gathered. While you take a deep breath, and walk on your legs as if you had always had them. You did always have them after all, you grew up in this village.
A smile crosses your face as you stare out the window. Seeing your own youthful, thin, and beautiful face staring back. It's a good thing a strong guy like Barsein was interested, and you had an ass the right size to take care of him. Though the longer the stare, the more you see another figure. An older man, with a barrel of a gut and balding head. A gruff human, no, centaur. His spectral form going from feet to hooves, fat gut retained, older stern face looking at you with appreciation. His own cock even larger than your husbands, spilling its load straight underneath him, before he fades from vision.