Jeff eagerly inserted his penis in Jenny's vagina, and it felt just as amazing as before, though this time he knew she wouldn't transform while he was in her. He started thrusting slowly, but before long he was thrusting hard and quickly, Jenny's vagina squeezing tight around him. It was quite an effort to contain himself until she reached orgasm, but it didn't take long. He filled her with many spurts of cum.
"Now for the first surpise!" Jeff said, though he wasn't sure whether Jenny could hear him. He picked up Jenny's torso, and turned her around so that her shoulders, though without arms, were closer to him. Now he could see that where her neck had been, there was a second pussy, which looked exactly the same as the first. He could see that it was already wet. "I wonder whether you're aware of this change? But there's more yet to come!"
Jeff once again eagerly mounted her. This time her boobs were conveniently closer, so he massaged them as he thrust. "This seems pretty freaky," Jeff said, "but it sure feels great!" It wasn't long before he came again. He lay on top of her torso to rest a moment, feeling the odd sensation of her large breasts pressing his stomach.