Lewis came to the best orgasm he ever had in Dei's mouth. Dei slowly pulled his mouth off of Lewis's cock, squeezing his lips as he did so. The tingling persisted, Lewis's tool remaining hard, and Lewis stared as his cock and balls grew. Just a couple of extra inches, coming to a stop at around 8, with balls proportional to match. Dei stood up, and forced an open-mouthed kiss on the young man. Lewis felt his voice returning to him.
"...Wow..." Lewis grinned, ecstatic at his new length, pretty much exactly the amount of extra length he'd wanted.
"It's time for you to go back to the forest you came from," Dei said with an almost wistful lilt, turning away from Lewis, walking towards where Lewis's clothes were piled. Bending to pick them up, he turned back towards Lewis "I'll be keeping these as payment for services rendered. Have fun with your new toy."
Dei's voice faded, as did the clearing. Lewis found himself facing a tree, his still erect cock just a few inches away from it. Looking around, he couldn't see the trail, and he wasn't entirely sure what the way towards it - or more directly towards his home - was.