Jon also found himself thinking more and more about Karyn as his body grew more and more masculine. His daily appointments had interfered with the time he normally spent with her, and although they chatted occasionally at school, he hadn't had much time to hang out with her.
He called her up and asked if he could come over. Karyn told him that he was welcome, but not to mention to his parents that her parents weren't home. Even though Jon and Karyn were supposed to be old enough that they didn't need parental consent to visit each other, her parents were still fairly strict about her having boys over without supervision.
Jon got to Karyn's house and was excited to see that she was wearing a cleavage-exposing sun dress today. He felt a stirring in his crotch as he looked at her, and she blinked up at him, smiling.
He went inside and they made their usual small talk. Soon, however, their conversation turned towards the changes Jon had been undergoing.
"You've been looking... different lately, Jon," said Karyn, "have you been working out?"
"Something like that..." Jon admitted. Before he could explain, Karyn was asking him to flex his biceps for her. She gasped a little at how well-defined his arms were.
"Wow," Karyn exclaimed, "I like how they're firm and defined but not too bulky... that is REALLY hot."
Jon blushed a bit, but he had to admit that he loved getting this new kind of attention from Karyn. Soon, he was shirtless, and Karyn was openly admiring his six-pack and the rest of his torso.
Karyn was getting very turned on by this point, and although Jon was still being the perfect gentleman, she couldn't help but notice the way he was looking at her. He kept sneaking looks at her generous cleavage - which, of course, had been her plan when she put on this particular dress. Still, Jon wasn't making any moves on her, which meant it was up to her. She started by offering to massage his back, an offer that Jon could hardly refuse. Soon, she was reaching around in front and gently stroking his pecs and abs. It wasn't long before she slipped a hand down the front of his pants.
Karyn gasped when she felt Jon's trouser snake, almost as loudly as Jon gasped when Karyn unexpectedly grabbed at it. Karyn turned Jon around and asked if he would let her see it. Jon blushed furiously, but pulled down his pants, revealing his massive, semi-hard member. Karyn was amazed - she had no idea Jon was this well endowed!
Almost without thinking, Karyn began to stroke it. Jon's body had a faintly musty smell that was making Karyn feel wet between her legs, and before either of them realized what they were doing, Karyn had the end of his cock in her mouth and was sucking him off. Jon started to moan and felt a wave of heat flushing through his body. He didn't have time to warn Karyn before he exploded, and he shot out his load just as Karyn was trying to take his huge unit even deeper into her mouth. The result was that Karyn got a huge, hot load right down her throat, up into her sinuses, and soon, dribbling down her cleavage.
Embarrassed, they both cleaned themselves up and Jon headed home, kicking himself. Karyn also felt ashamed, and was so worried that she'd messed things up with Jon that she didn't pay any attention to the warm, flushed feeling that spread through her body.
