You collapse against the counter and watch in horror as Kurt continues to shovel food into his snout. The sloppy pile beside the overturned fridge gets smaller and smaller until Kurt's stomach covers most of his thighs and his cheeks take up most of his face. He squeals for more but is apperantley too fat to move.
Suddenly, something strange begins to happen. Kurt begins to...shudder. It's the only way to describe it. His whole body shudders and his fat jiggles. He oinks loudly and collapses spread-eagle face-down on the floor, crushing his snout against the tiles. That's when the changes start.
His hands and feet harden and bulge further, any semblance of fingers and toes lost to the shape of complete trotters. His thighs somehow become even more beefy, if that was even possible. In fact, his whole body from the neck down seems to get rounder, pushing out on all sides, even pushing up on his back. The fat slides and packs on until it's more or less evenly spaced around his body rather than just in his stomach, legs, and arms. His belly button dissappears along with his nipples. His anus and dick pucker and move underneath his thighs and midsection. His legs shorten and fatten, packing on meat on the top part but remaining a little thin near his trotters. The same happens to his arms as they rotate forward in their sockets and become splayed hard out in front of him, impossible to move dexterously. His cute curly tail pushes out more. His neck becomes so engorged with fat he barely has one at all as it becomes paralell with his body. His head grows larger and any semblance of humanity is lost under a wave of piggishness as his snout pushes out more, his ears move to the sides of his head, his eyes are pushed farther apart, and white hog bristles grow in a wave over his body. He oinks in distress as the fat moves around, adding on a few more pounds here and there until it appears it is done. On a final note, the briefs finally give away under the strain and snap into four pieces, fluttering to the floor.
In place of the anthro pig that used to Kurt is now a gigantic regular pig that used to be Kurt. Any hope you had of changing him back melts away as he goes back to digging in, not able to use his "hands" anymore and now just using his snout.
You walk back into your bedroom and retrieve the box out of the closet, checking it for any sort of guidance of what to do in this situation. You notice a disclaimer written on the bottom:
"WARNING: EXSESSIVE EATING, MASTURBATION, OR DEFECATING WHILE WEARING BEAST BRIEFS WILL RESULT IN A FULL AND PERMENANT TRANSFORMATION RATHER THAN AN ANTHRO ONE! THE ONLY CURE IS..." but the rest is obscured by a stain.
You throw the box into your closet in frustration and walk back into the kitchen, where the pig has finally stopped eating and dozing on its side, taking up over half of the kitchen floor with it's bulk.