As your orgasm subsides, you shake your head, your vision coming back into focus. Unabated Liam continues to pound into you, each of his thrusts reverberating through your body with a meaty slap as he grunts with exertion. Shaking, you look up into your reflection in the glass of the viewing window and your heart skips a beat.
Even though only minutes have passed your transformation has already progressed dramatically. Your hair has extended down your neck in the beginnings of a mane, your back itself having started to broaden. Atop your head a pair of pointed equine ears have replaced your rounded human ones, the fine hairs coating them a perfect match for the dozens of hairs that are sprouting all over your body.
The most dramatic changes of all have occured in your rear. Your ass is now preposterously large, your rounded cheeks having morphed into the haunchs of a mare, and your thighs having swelled to match. Your new tail swishes into Liam's chest, who for his part seems none too concerned by your now equine rear as he continues to plow you. Your transformation is just business as usual for him you realise.
Despite your realisation of Liam's indifference you still moan shamelessly with every pump of his cock, your tail swiping against his abs again as you feel his grip tighten on your hips as he leans forward to taunt you, "It won't be long now my little horsie" he laughs.