I admit I become a little stiff from her kiss. Maryjane comes into my arms with tears in her eyes. ‘I don’t want you to go. I need to be bisexed ...gain.’ I chuckle and point out that Roger and Betty will take care of that for her. She smiles a little bit and kisses me goodbye. Her hand strays down to my crotch. She whispers, ‘But yours is so much nicer than his.’ I smile, break the clench with her, and turn to put my leathers on. Alice is getting into hers. We hitch the trailer with Roger’s. He came out of the bathroom with a towel around him. He stopped at his bed and dropped off his stuff and then walked toward me. I noticed now the outline that I had missed all this time of his still firm cock -- it was large. He stood by me looking down. I wished he would drop the towel, no I hoped he would. He looked down at me and said thank you. I knew he meant that he was thanking me for not making it worse on him the night before and causing him to die from embarrassment. "If you really. " Fair enough," I said. "I haven't made out in the back of a car for a long time now, but I suppose it'll come back to me." It will. I guarantee it."At the laboratories, I checked on my little machines, made a few more notes and set them ticking away on some new problems. I'd managed to catch some of my semen as it dripped out of Sue's ass. The sperm looked pretty dead, but I set some of the machines to analyse them anyway.Over in the medical section, things were happening. Another research. The first time it happened she was filling up some sauce pots and I had to go through to the Fridge. I slid past behind her at the exact time she moved backwards.By doing so her round firm ass cheek wrapped around my hard on. Her stepping back made me lose my balance so to steady myself I grabbed onto her hips without thinking but all I did was push my dick harder into her making it undeniable that I was horny.I heard her gasp and I started to panic in my head when she started moving forward,.