Finally unable to restrain herself, Jennifer pushed Randy to the floor and straddled him. Randy was still lost in a haze and hadn't quite realized the changes already occurring in his body. Jennifer looked down past her hanging breasts and saw the twin 5" penises that were once her nipples standing fully erect and knew that it was time to alleviate their throbbing.
Jennifer slowly leaned forward, her hair hanging down and partially obscuring the proceedings. She rubbed Randy's chest and used her thumb and forefingers to hold open the now fully formed labia on Randy's chest. Randy didn't know exactly what she was doing to his nipples, but it sure felt good and he wasn't going to complain while Jen kept up the 'massage'.
Randy felt a slight pressure on his chest a moment later and figured that she was rubbing her tits on his chest. He always enjoyed it when she did that. This time, though, things felt a little different. A gentle push from Jennifer slid the head of the right nipple-dick into Randy's awaiting nip-gina, followed moments later by the head of the left nipple-dick into the other one. Randy didn't know what to do. He was looking at his girlfriend's nipples, or what used to be nipples, push slowly into his chest and it felt good. He reached up behind her, locked his hands behind her back and began to pull her down into his chest.
Jennifer was feeling things she'd never felt before as well. Once she had guided her nipple-dicks into Randy's awaiting nip-ginas, she realized that this was how men must feel when engaging in lovemaking. As Randy began to pull her down onto him, she felt her nipple-dicks sliding into a warm, wet and tight embrace and part of her mind just turned off as she focused on the pleasure building in her chest.