Jon was worriedly inspecting his white tank top in the mirror, wondering if it would be able to withstand the pressure of his breasts (which at the time seemed to be struggling for freedom) when Karyn walked in the door to his bedroom. She quickly closed the door behind her and leaned her back against it, staring at Jon hungrily. She looked stunning with her now long blond hair and tits that rivaled his. The pink t-shirt she wore was slightly riding up above the top of her tight blue jeans, showing just enough of her midriff to make him feel a bit excited.
"Hello, lover," she breathed sexily. Jon was shocked at this, since the wish had obviously redefined their relationship in some way, but not as shocked as she jumped on him, throwing him to the bed and began to aggressively kiss him. Jon, Britney's body double or not, did what every teenage boy in his position would do, and aggressively kissed back, thinking that he's work out the details later. He didn't anticipate how Karyn would take this signal, doubling her efforts toward him, groping and touching each erogenous zone on his body. Had she always this pushy? He wouldn't know, having only ever been her best friend.
Soon she had Jon completely disrobed (his query about the fate of his tank top left unanswered) and began on herself. Maybe it was the hormones pumping through his sexed up body, but she looked hotter than he had ever imagined. He reached up (she was on top of him, straddling) and touched her breasts. They were warm and round, and the feeling of her nipples in his palms made him feel an electric jolt in the pit of his stomach.
Karyn grabbed for his now erect penis. He looked down and, disappointed, saw that it was smaller than it had been in his former body. She fondled it for a few seconds, and then led it to her waiting, and dripping, vagina. He hoped that it would be enough for her, worried that the size would hamper her pleasure.
"OH YES!" Karyn yelled, "STICK THAT FUCKING MONSTER IN ME!!"
Jon, gladly complied, enjoying the sex, slightly worried about the noise, and relieved that his size wasn't an issue. As he thrust into her she cried out intermittently, leaving her body writhing on top of his. Through his penis he felt her vagina quiver over and over as she experience orgasm after orgasm. Finally (well, after about a minute and a half), grabbing her head and pulling her down for an aggressive kiss, he was able to cum. The electric feeling of arousal he had felt earlier doubled, then tripled, leaving him shaking and seeing spots.
After a moment or two of heavy breathing, they finally parted, lying next to each other on the bed. It took a good five minutes before Karyn leaned over, grabbed one of his breasts and gave him a long, loving kiss. A moment later it was over, Karyn was standing up, and looking at him admiringly.
"Holy crap, Jon. Every time we make love I think you're going to break me in half with that thing."
"You mean, my penis?" he asked, obviously confused. The penis he had was a fraction of what it had been before the wish.
"What do you think I mean, dipshit?" She laughed, and punched him in the arm, "That thing is huge! I'm telling you, when this Britney thing stops paying the bills you should go into porn! A cock that huge would sell millions of copies! Think of women everywhere creaming over you. Not that they don't already, it's just that they'd know it's you this time."
Amazement wasn't a strong enough word to describe how Jon felt. Shock? Wonder? Stupefaction? It seemed that, while small, his penis was now considered huge. He shook his head unconsciously, thinking about his predicament.
Seeing his head shake, Karyn took it as a hint, "No? Fine, whatever. I'm going to shower," she walked to the door, buck naked. As she opened it and walked into the hallway, she called to him, "Oh, and babe? I bought you a present!"
It was then that Jon noticed the bag sitting by the door, just inside his room. He walked over to it and opened it. Inside was...
