"Well," Steve began, "I think I'd like to see you grow more."
Ty grinned and began to age even further, growing at the same time and he stopped when he was thirteen and standing 5'7''. He was as truly ripped as ever, but now had the hints of maturity in his face; but the youthful look in his face was still there, and his voice was both pre and post pubescent at the same time. There was the beginnings of blond pubic hair around his genitals, and each and every one of his sculpted muscles was huge. The other only came up to his huge chest. "So hot," Steve muttered to the teen.
"How's this?" Ty asked, leaning back on the small bed next to Steve.
"Sexy, but I want you bigger," Steve replied, climbing on top of his friend.
"I don't really want to get any older though," Ty replied.
Steve kissed him again then replied, "Then just get bigger."
Ty shrugged and began to grow in height, growing proportionally so his muscles grew with him. He grew five inches, stretching beneath Steve and swelling in muscle until he was six feet tall and pure muscle. "How about now?" Ty asked.
"Bigger," Steve urged.
Ty shrugged and grew even further, growing up an entire foot this time and stopping at seven feet tall. The bed beneath him groaned under his weight and he threw in a few extra pounds of muscle, just for good measure. Every aspect of him was gigantic now, and his boyish teen voice was quite deep now. "This big enough for you?"
"Yup!" Steve replied, drawing his friend into a long kiss, feeling all the muscles he could reach.
At last Steve was finished and Ty shrank himself back down to 5'7'', much to his, apparently, boyfriend's chagrin. "Sorry Steve, but the bed couldn't have handled me at that size for too long."
"Alright, next time I want to grow with you," Steve replied as Ty got younger again, going back to ten.
"So, any requests from Milton or Alex?"