Adam's worry was interrupted by a sudden tightening sensation in his groin. Looking back down, he watched as his cock began to swell and thicken, just like Clay's had. The four-inch shaft, nearly half as tall as Adam was, grew up and out. The sensation was deliriously erotic, and Adam could do little more than moan as his dick grew.
Clay looked down in confusion at the small man. "Hey, what are you-- oh, that's right. 'I wish your dick was the same size as mine.'" Clay chuckled. "And you were worried about being small."
Adam stroked the base of his shaft, the only part he could reach, as it reached and passed the one-foot mark. "Clay--!" he panted breathlessly. Adam's dick was now bigger than he himself was.
"Just ride it out, little man," Clay said. He reached down to trace his fingers along Adam's lengthening dick. "Looks like you're only about halfway there."
The growth tapered out as Adam's cock hit two feet. "That..." Adam gasped between breaths. "...too big..."
Clay grinned. "We'll see about that."