Peter had forgotten he could change Joce as he wished, and since her Milk was still technically her, when he'd idly wished he could still feel stuffed, the milk had changed to fit his wish.
Peter's stomach was inflating like a hot air ballon. Joce managed to move out of the way, carrying her boobs to the corner as Peter closed the gap between him and the opposite wall. His gut was growing more and more spherical, looking like a giant flesh ball with an muscular body attached.
Peter groaned as his stomach met the opposite wall and flatten against it. Cracks began to form on either wall. Peter now filled the entire locker room save for the corner Joce looked from in awe.
Finally it stopped, and Peter absently stroked the taught flesh. Man, he was full...