The being standing before you is Buttercup, alright, but she's, well... different. Where there was once an immense cow, there now stands an equally immense figure that looks like a minotaur straight out of Greek myth; or, well, if Greek mythology was written by someone with really weird fetishes.
Buttercup has become an utterly massive humanoid creature, looming over you like a mountain of flesh and fur. The cow was already massive before, but now she's got to be at least 12 feet tall. True to her species, she has a colossal pair of breasts, each one significantly larger than your entire torso and capped with a nipple almost as big as your fist, resting atop and sticking out a bit over a massive fat belly. Wide hips and a colossal ass easily large enough to completely smother you underneath it (The latter has a long cow tail growing just above it) lead down to a pair of powerful sturdy legs with thighs as thick as tree trunks that end in cloven hooves instead of feet. Buttercup's arms are just as burly as her legs are, with five short, thick fingers on each hand tipped with a blunt hoof-like nail, and her face is still fairly similar to what it was before; however, her eyes face forwards now, and her muzzle is considerably shorter, giving her a much more human-like appearance. Every inch of the cow's figure is thick with fat overlaying muscle; there is no doubt that if she wanted to, she could snap you in half like a toothpick.
"W-what...?" You stutter out, crawling backwards away from the titanic-titted cow woman.
"You recognize me, hun?" Buttercup drawls, her voice deep and low with a sort of motherly tone to it. "Good; ah was worried you wouldn't recognize little ol' me like this."
"B-but... how?!" You splutter, mouth flopping up and down like a fish. "You were a cow, and now you're a woman, and-and... how?!"
The bovine giantess just smiles calmly. "This is how ah normally look, sugarcube." She explains. "Turnin' back an' forth is a little talent o' mine that ah picked up years ago. A few o' the other cows 'round here can do it, too, but none on this farm." She gestures towards the other cattle, which are currently huddled together on the opposite side of the pen from you and Buttercup, shooting you what you can swear are bedroom eyes. "To cows like you, you smell like th' most delectable li'l thing imaginable, but th' other gals'll listen to me. They won't bother us."
"For what?" You ask nervously.
Buttercup just smirks wider. "Ain't it obvious, li'l man?" She coos, leaning down with her hands on her knees, which has the side effect of propping up her immense breasts a bit more. "Ah want...."