“Beginning phase three.” Lee looked at Charlie growing, but didn't really watch. Charlie was recovering size he'd just lost, and the growth just wasn't as impressive the second time.
Lee had, of course, figured out the secret of The Contraption. Morris had, probably intentionally, misled them by showing just one round. The operation of The Contraption in one round was fairly simple – it was when you played multiple rounds that things got tricky. The key to it was that the black fish tank, the tank that took what input didn't go to Charlie's tank, never got emptied. And each round it had to be balanced. That meant that each round, more and more of Charlie's size would be pumped to Lee.
That is, if Lee survived. Charlie had threatened to beat the shit out of him, and Lee didn't doubt that he would once he realized what was happening. So Lee hoped he didn't realize what was happening. He was brought out of his reverie by a sudden snap, as Charlie's briefs gave way. And wow, what a cock. It was nearly a foot long, and thicker than a soda can. It quickly nestled itself between Charlie's pecs, gradually dousing them in pre-cum. Lee normally didn't like looking at Charlie naked, but this was artwork.
Lee hoped Charlie would be distracted enough by his freed cock that he wouldn't mind the shrinking, as just then the pump clicked on. But it was Lee who was distracted, as he once more felt himself growing, bulging, strengthening. His once loose T-shirt was beginning to press against his expanding torso. It also pulled up so that Lee could see his stomach, and groaned when he saw that it was flat, with a hint of abs. Just as the fish tanks became balanced and the pump clicked off, Lee felt his shirt rip at his shoulders. His cock twitched, and when he felt how much flesh had just twitched, it twitched again, harder.
He was now above average. Most of the people on the street were smaller than him. It was a heady feeling, but it didn't last long.
“I don't feel much bigger than last time.” Shit. Charlie had found a clue. Not much of one, thought Lee, since he had been keeping track and knew that Charlie was in fact almost exactly the same size as he was at the end of the last round.
“Yeah, I didn't grow as much that last round, either” Lee lied. “I think there must have been less of the magical growth-y stuff” he finished lamely. Charlie scowled at him, assessing his size and furrowing his brow.