Tiffany watches Katie as she sleeps. The breeding cow lies on her side, completely spent. She idly licks the cum from her snout. Her udder lays on the floor, the teats leaking small lines of milk.
Tiffany has one hand stroking her shaft, while the other tugs at her own nipples. Watching the cow underneath her sleep is, for whatever reason, extremely arousing. Tiffany eventually stops massaging her nipples because as her cock grows to its full size, she needs both hands to pleasure it. It's at least three inches thick, possibly four. Her four balls move from side to side as she starts rubbing her cock faster and faster.
As she climaxes all over Katie, there's a distinct cracking sound. Tiffany looks over her shoulder to see that her back legs have suddenly started to shrink. She watches in fascination, as she only transformed a few moments ago. And now the changes are seemingly reversing themselves. Tiffany's "tauric" body melts away just like her bovine features had.
Tiffany can feel as her bones start to change back to a human form. Her hooves crack into five distinct sections. Slowly, the hard nail is reduced and soft pink flesh is left. As the last of her "taur" body is sucked inside, Tiffany feels the extra mass move up to her chest. Her breasts increase again, to G cups. They slosh around, full of milk. Her nipples, still thick black pegs, start dribbling milk as the transformation continues.
Once her feet and legs have finished shifting, Tiffany can see she's been left with some seriously well toned legs. As her eyes drift up, she's sad to see that her second set of balls have gone away. But, as if for compensation, Her original set have grown to the size of coconuts. The hair has turned back into pubs, wiry hairs covering her sack. When Tiffany goes to inspect them, she's shocked to find that there's something underneath them.
She lifts her testicles out of the way, and squeals in delight to find she once again has a vagina. Not like her old one though, this one is much bigger, and more doughy. Not like Katie's animal pussy, but much bigger than anything Tiffany's ever seen on any other girl. The outer lips are black, but when Tiffany peels them back she sees that her insides are pink and slick with juice.
And then, just like that, the changes stop. Tiffany walks forward to the mirror in the corner of the room. She liked what she sees. She's human again, or close enough to human. Aside from the massive breasts on her chest, she still has an obviously animal penis. Semi-hard, her cock is about 20 inches long. A sheath still runs up half the length, and the head ends in a blunt, somewhat stubby form. The hole in the middle is the size of a quarter.
Tiffany swings her hips, watching as her cock and balls are brought to an erection. Her nuts pull tight, and her female sex dribbles fluid down the sides of her legs. Her balls are soaked, and Tiffany quickly dips a hand into her enlarged twat. Her lathers her cock in her womanly juices, and then cums. Male and female spunk mix, and Tiffany watches as ropes of white jizz flies towards the mirror.
When her orgasm is over, she smiles as her bullcock retreats into its home. The sheath is eight inches long, and Tiffany can just see the head of her cock inside. her breasts heave with every breath, and her nipples are still quite hard. They, like her cock, slowly shrink and after a few minutes are reduced to one inch nubs. With skin still leathery and tough like her genitals.
"Wow. This is pretty hot. Don't you think Katie...?" Tiffany asked. But when she turned around, she realized that her friend was nothing more than a breeding cow now. And whatever attraction she felt towards her was gone. Tiffany shrugs, indifferent to Katie's predicament now, and decides to leave. The only thing on her mind now is to go home, get some sleep, and then find someone to share her "gift" with.