Woah, cumming for the first time was undoubtedly one hell of an intense experience. Sure Billy had fooled around a few times before, and maybe he'd had a good time then, but nothing he'd ever done matched up with how intense this all felt for him now. He had to get a better look and see what in all he was working with now. The young man cleaned himself up with a towel and then plopped down in front of the mirror. What he saw almost took his breath away.
He was looking at a tightly muscled, strong young man he had scarcely even imagined he could be. His arms...his biceps were eighteen or nineteen inches total, and his shoulders were so wide. Everyone always talked in the books about how broad shoulders looked good on a guy, and Billy had the broadest shoulders he'd seen even counting that ripped PE teacher at his school Mr. Kenton. And his chest...HIS chest! Billy could see a broad, strong chest and below that an abdomen that easily showed a six pack with the accessory of strong, toned obliques.
Billy reached around and felt his ass, noting that this kind of a butt on him meant that he was probably gonna need some bigger jeans and stuff. Much bigger. He grinned at himself and flexed again. He was just so handsome now, a masculine face lightly crowned by stubble. And that feeling when he'd gotten older had felt so incredibly good... Billy looked at the Leeching Cube again for a moment and considered his options from here.
Sure he was happy with what he had now, but this was only really the beginning of his fun.
He went on to his laptop and pulled open some apps. It looked like Luis was posting about just doing his usual immature shit at home. "Heh, he's being such a kid."
Luis was of course blogging on Facebook about the new toy stuff he was building with now, and how much fun he had with it. Billy almost rolled his eyes. Not only was Luis boring to talk to about girls, his usual response being some variety of cooties joke, but he still played with toys like that? Maybe it would be a bigger gift to Luis than he thought to introduce him to how things were at older ages. Maybe just bring him to eighteen or twenty one---
Billy's thought processes were interrupted by his mother shouting from downstairs, "Billy! Your father and I are heading out for the night! Your aunt Clara needs some help around her house. Be good and no parties, understood?" Billy wondered how he could even respond to her now without giving away what happened...but thankfully evidently whatever was going on with Aunt Clara was so significant that his parents were out the door posthaste. He could hear the car driving away. Which meant he in all likelihood had the house to himself.
Back to the computer he went, and Billy started looking into what he might be able to do. Sure Luis was immature, but he was a loyal and good friend of his. Maybe if he showed Luis what maturity offered, and that he could ascend past this phase of childhood, then Luis might be more willing to see things Billy's way.
Or...Billy looked again at the Leeching Cube.
He could always play around a little bit more with his new toy. It had felt really good, amazing even, to get older like that. And while he wasn't gonna want to get as old as like, his dad, maybe another ten years older would feel really good too. A perverse grin came over his face as he stretched on the bed and looked down at his manhood. Oh yeah, now that he was older, this thing seemed to really come alive.
He could already feel it getting thicker and turning on again just at the thought of how it had felt earlier.
Now he just needed to make a choice about what he was going to do from here on. He could invite Luis over and show him what he was missing out on and hopefully get him to use the Cube too, or he could explore his maturity even further, knowing he could revert back to a preferred age at any time, or...