Jess noticed that Bill wasn't moving very well on his four new legs. Jess and Mary had had plenty of practice over the last few days moving their portly bodies around with grace and efficiency, but Bill was still having trouble in anything but straight ahead mode. Jess started moving sideways along the fence.
"Of course Mary liked it, you idiot--she's in heat! I thought you were supposed to know about pigs!"
Bill was trying to come up with a reply while staying in front of Jess, and got his two front legs crossed. Jess charged.
Jess's porcine poundage knocked Bill off his feet, and Jess quickly seized his ear in her teeth, while putting her razor sharp front trotter on the boar's throat.
"OK pig-boy." she whispered between closed teeth. "Where's the human vial? I assume you set it up so a pig can drink it."
"I just wanted to have a little fun." Bill whined. "Don't make me go back to being a useless old man!"
"Don't worry about that. Just tell me where the damn human vial is."
"Alright, it's in the barn. But how you going to go get it without letting me go?"
"Mary! Mary!" Mary was still floating around in a sexual daze so it took a while for Jess to get her attention.
"What, Jess? What are you doing to Bill?"
"He tried to rape me!"
"Oh." Mary didn't seem very concerned.
"Look, I need you to lie on top of him while I go get the human vial!" Mary was by far the largest of the three transformed humans. Mary slowly walked over to where Jess and Bill were clinched and pinned the boar beneath her.
Jess quickly trotted over to the barn and found the human vial set up on a low bench with a nozzle-like arrangement. She drank the whole thing.
Jess's body shrank rapidly, while her back legs thickened and grew. Her snout pulled into a human nose, while her teats grew and rounded into human breasts. A naked woman stood where the pig had been.