"Right now you're my play thing." Jason reminded her. Her gripped her waist and slid up his his cock until just the head of his penis was still inside her. Her stomach shrank a little as his volume retreated, but quickly swelled again as he slammed her down. His cock went up in front of her ribs again, stretching her round belly into an oval and bouncing her breasts out to either side as he rammed them from below.


"Oh my god," Rebecca cried. Jason lifted her once more. Again her tits bounced apart as his cock head sheathed in her flesh pushed between them. The funny tingling around her boobs grew stronger. "You're fucking me to pieces," she said as he lifted her again. Jason brought her down one more time. Her tits bounced and each gave a pop as they disconnected. They both fell onto the coffee table, one nipple down, the other nipple up. "Too hard!" she burst out.


Jason stopped. "Oh shit. I'm sorry babe," Jason apologised, "It felt so good. I didn't mean to get that rough. Did I hurt you?"


"It's alright Jason," Rebecca reassured him. "I'm alright. I like it rough sometimes too. Remember when my tits first came off? I was pushing you to go harder. It's just now isn't one of those times. Lets take it slow." She smiled encouragingly at him. "I can tell you enjoyed it though. You've gotten even bigger. Look."


Jason looked down and indeed he had. Where before he had reached just past her sternum, now it extended nearly half way up her chest. His cock head was nearly half as wide as her chest was. "Holy crap. I'm huge," Jason said in wonder. "I've never been this big before. I guess I grew some more,"


Rebecca smirked, "...or it's me making you grow bigger."


"I think it just might be you." Jason replied.


"When was the last time you let it all out?" Rebecca inquired.


"Before we started going out," Jason replied. "I've been restraining myself for you."


Rebecca got a genuine smile on her face. "That's sweet. I guess I know why you got rough. I'm sure you had a lot of pent up tension after a month and a half."


"I did," Jason admitted.


"Well, lets release a bit more of that tension." Rebecca encourged him. "Slowly this time though, okay?"


"Yes mam," Jason agreed. He gently lifted her up until just the tip of him was in again. The thin sliver of her that was all the remained below her waist after her hips had come off buldged on either side with just his tip inside her. He tilted his head a lightly kissed her belly button, raised by her distended belly, then slowly lowered Rebecca.


"That's it," Rebecca encouraged. "Nice and easy. It feels good."


"It feels great," Jason agreed as he slid Rebecca all the way down. His cock pushed up in front of her chest again. He lifted her again.


"Pull me close this time," Rebecca instructed. Jason did so and he pulled her down again. Her breastless chest slid smoothly over his. Rebecca's breath was driven from her body as his cock head invaded her ribcage. It was larger than before. She could feel it nudging her heart to the side. She took a shallow breath. "You feel that beating?" Rebecca asked. Jason could feel it. "That's my heart, beating for you."


"You feel that throbbing?" Jason responded. There was no way Rebecca couldn't. His whole cock was throbbing slightly. "That's my penis throbbing for you. I'm almost ready to blow my load again."


"Do it. Use me like a cock sheath," Rebecca encouraged. "Just do it gently."


Jason pumped Rebecca up and down five more times before he felt things starting again. It took an extra pump travel the length of his penis this time. He pulled down hard on Rebeccas shoulders. Her back buckled and she crumpled a bit. Jason's cock pushed up past her lungs, right up to her clavicals. He could see the tip straining against the base of her neck. Rebecca's eye grew wide. Her breath was extremely shallow. There wasn't much room in her chest with Jason's cock taking up the better part of it. Her neck pulsed as his semen burst fort once again. Her stomach grew again. It swelled up to the size of a basket ball, then a small beach ball after a few more pulses.


Rebeccas torso tried to twitch. Her arms and legs jerked and another orgasm, her third of the night washed over her. That funny feeling prevaded all her joints. "Hold my head," she managed to gasp while in the thoes or orgasm. Jason put a hand on either side of her head. Just in time too. Her neck release with barely a noise. Her knees, elbows, wrist, and ankles sepearated too. Each of her hand lost their fingers as her feet lost their toes. On the table, the nipple of the breast that was facing up slid off the side of the tit and landed on the table top. Jason brought Rebecca's head up to his and kissed her deeply.