Still dazed, Rob picked out the vial that made the most sense to him. He unstoppered the vial and gulped down half the liquid. It tasted awful and made him gag. He put the stopper back in the vial and turned back to Mary.
"That was horrible! Do they all taste bad?" Rob asked, he was rubbing his stomach in sympathy.
"No, the cow tasted like milk. Are you OK, Rob?" Mary was looking down at Rob's stomach.
Turning his attention from the bad taste in his mouth to his belly, Rob jumped when he saw what had been a six-pack belly was now sticking out noticeably under his t-shirt. He rubbed his hands over his belly, feeling supple fat. In fact, all of his body was slowly plumping out.
Rob's nose itched and he sniffed hard to try to stifle it. The problem was, he kept right on sniffing. His nose kept going! The nostrils of his nose swelled out and up. Looking cross-eyed down at it, he knew he'd just gotten a snout. A pig's snout.
The fat on his body kept swelling out until it was just enough to make him uncomfortably tight in his clothing. Subtle rolls of fat pressed to get out of his confining shirt. Rob explored his newly transformed body. His hands had become two-digit hooves, with large dark nails on the ends. His ears were flat and had moved up near the top of his head.
He was, now, more or less a half-man half-pig and finding that not only had his body changed, but his appetite. He felt ravenous. Maybe it was the energy needed to transform, or it was just being a pig. But he needed to feed. Drool leaked out of his long snout as his eyes came to Mary's gigantic udder, swelled with milk.
Rob snorted eagerly and kneeled on the floor for easy access to one of Mary's teats.