Peter stood there in the hall, trapped by his nine-foot manhood. Every student in the school had the power to make him grow or shrink to any size, and every part of him too!
Peter desperately wished that they didn't have that power, that he wouldn't be a freak at everone's whim, and with that thought, the exploded in size, growing larger and larger as his explosive growth squished the school along with Ty, Joce and all the rest. He was now a 6000' giant with a 9000' penis.
Peter wished to be normal again and shrank back to his original size, with his original size cock, standing amidst the rubble of the school, or really the penis-shaped crater print where the school had been.
He didn't know whether to be horrified or elated, so was actually a little of both. All of his schoolmates were dead, but he had superpowers. Admittedly just the power to grow or shrink himself, but that was pretty cool.