You wake up in a stall in a barn, the straw scratchy against your bare, naked skin. You struggle to stand on unfamiliar feet, and looking down, realize you have thick, heavy cloven hooves.  What's more, there's black-and-white splotched fur spreading up your ankles and calves, reshaping them as it goes until you're in a digitigrade stance, stumbling and falling against the stall wall, trying to hold yourself up as the fur sweeps up your legs to your hips.  Whatever was between your thighs before has been replaced by a puffy pink vulva, bareskinned and smooth amidst the patchy fur, sensitive and already damp. The fur moves upward, leaving another smooth hairless spot on your abdomen, where four little fleshy buds have popped up, supported by a swelling fullness beneath. The udder balloons out between your hips, heavy and taut. You slump against the rough wooden wall, head spinning with arousal and confusion as your leaking udder drips into the straw between your big black hooves. Upwards the fur moves, encouraging your newly heavy breasts to swell, packing on pounds under fat pink nipples, which are beginning to leak as well. Finally the fur engulfs your head and arms, pushing a muzzle out of your face, boxy and pink-flushed about your nostrils and lips. A wide, flat tongue fills your mouth as your throat wells up into a loud MOOOO! just as small horns erupt from your forehead and your ears flick into large teardrop shapes, a tag appearing from nowhere to punch its way through the left one, marking you as owned. Long, thick brown hair flows out of your scalp, completing your conversion to curvy, milky cow-girl. You sink down into the straw, overcome, and begin to helplessly tweak your nipples and teats, hands finding your soft sex under your udder to dampen your fingers and thrill yourself to a wet climax, milk spurting from udder and tits as you moo out your pleasure. Exhausted, you curl up in the soaked straw, wondering what will happen to you, and too sleepy to care.