Karen was almost giddy, enjoying the pleasant sensations of Jon's body pressing into hers in all the right ways as they kissed. Jon pushing his navel into Karen's dick felt especially good. Karen broke the kiss and reached down, pulling Jon's pajama shirt up over his head and getting her first good look at Jon's face.
Back in her room when they had stripped down, Jon looked so nervous and vulnerable, fear of facing Karen's potential rejection written all over his face. That expression faded after Karen had performed her detailed analysis of Jon's junk. It was still there to some extent, but it was colored by an eagerness and mischievousness Karen had never seen from Jon before. It was a look that promised all the joy in the world in the next few moments, and that all Karen needed to do was to reach out and take it. That look was the all the confirmation she needed to come here tonight. Jon was giving her that look again now.
Karen nuzzled Jon's neck and started kissing down his neck till she got to his chest, and ran her tongue around the phantom nipple sticking out a bit beyond his boob. Karen tensed up a bit as she felt Jon run his hands under her waistband and squeeze Karen's ass hard, scratching it a little with his nails. Jon let out a little gasp of pleasure as Karen reached her hand up and cupped the boob she was teasing with her tongue. She felt Jon reach around and wrap his hand around the base of her phantom penis, teasing the tip with his finger. Karen wrapped her lips around his hard nipple and suckled it, rapidly flicking her tongue across the tip of it. Jon squirmed in pleasure, and squeezed her dick hard in response.
Karen slid her free hand into Jon's pants and ran it down his crotch. Sliding her middle finger slid along his very wet lips, she squeezed his seemingly normal-sized clit between her fingers. Jon squirmed harder, and she felt him nuzzle up to her ear. The tips of his teeth brushed her ear gently, as he whispered, "I want you inside me."
"Oh, you mean this?" asked Karen in mock-confusion as she pushed one of her fingers into Jon's pussy. Jon clenched down on the finger but whispered back in frustration, "noooo. I want you to fuck me!" Karen slid another finger inside Jon, enjoying his obvious sexual frustration.
"Are you sure it will fit? I'm awful big," Karen asked with mock-concern around the nipple in her mouth. At this point, Jon had undone her pants and her dick was sticking out, rubbing pleasantly between Jon's hand and the hand she had in Jon's pussy. She wasn't usually into this sort of thing, but Jon begging for her to fuck him was super hot, and she wasn't about to waste the moment. "Please?" Jon whisper-whined in her ear.
"Please what?" Karen whispered.
"Damnit Karen! Please fuck the shit out of me!" Jon whispered back.
Karen broke away from Jon and pulled his pants off him, leaving him completely naked on the bed. Stepping out of her own pants, she pushed Jon back into his bed and lifted his legs above his head. Jon grabbed her dick and guided the tip to the lips of his pussy. Karen thrust her hips forward and slowly pushed her dick all the way in, feeling it completely engulfed in his tight oily warmth. She looked at Jon's boyish face, wearing an O-face that was anything but boyish. Karen leaned into him and began thrusting in and out of him. Although focused on fucking Jon, she noticed some differences between now and her earlier romps with Steve. For one, she didn't feel her boobs swaying on her chest as she fucked Jon. For another, she felt like Jon was smaller than her now. Had she grown? Had Jon shrunk? Or both?
Karen's thoughts were interrupted by Jon wrapping his legs around her waist and pulling her into him, as Jon looked at her with an expression of pure feminine pleasure as she mouthed "Harder."
Feeling the still weird sensation of the tension in her groin signaling she was getting close to a penile orgasm herself, Karen complied.
Jon was thrusting back in sync with her as she felt herself cross the point of no return. Instinctively she tried to pull out of Jon and whispered, "I'm about to cum. Let me pull out." Jon looked back confused at first, but then released his legs. Karen held her dick and shot cum all over his smooth belly. Jon ran a hand down between his legs and furiously rubbed himself to an orgasm. Karen watched him in fascination as he bit into his other hand red-faced, stifling a scream of pleasure as he came. "Holy shit that was hot!" thought Karen as she knelt on Jon's bed, looking over his body in a satisfied and tired afterglow.
As Jon relaxed from his own climax, he looked up at Karen. He still had that confused look on his face mixed with the pleasure and afterglow. "Karen," he whispered at her, concern touching his voice. "You're boobs are gone!"
