As she sped up and started bouncing up and down, her strap-on cock started bouncing as well, hitting me every time as she came down. Seeing her breast... bounce and now her cock bounce was driving me crazy. She let go of me to really bounce, and said, "Stroke my cock!" My wife was now bouncing up and down on my cock wildly, her breasts bouncing everywhere, and I was stroking her cock which was bouncing with her. This was so sexy I could barely handle it all. After a little bit of this, I could. I couldn’t fucking believe what I was doing right now. It was nothing but exhilarating. Getting up off the floor, I stood up and threw my shirt off, only to stare down at my sister, helplessly laying there on the couch in front of me. Slowly moving her head, looking up at me, I gave her a smirk. “God I’m going to enjoy this…” I said to her. Getting back on the couch, straddling her torso, our warm unclad skin made contact. Setting down my now engorged cock along her abdomen, I begin sliding it. It's a good team."Mayoni nodded. "I'm bringing up a display of the area now..." She continued typing. "Cross-referenced the ship's transponders on Earth's global sat grid... I have you pin- pointed. I'm getting a real-time picture of your ship... You're using the Galileo, huh?" Yeah, it's my favorite research cruiser. The only thing wrong with it is that it's too opulent. We never get a chance to rough it."Mayoni blinked. "Rough it? You're the only team that stays out. All the other researchers. When I rang, C answered, she told me that she was free for the weekend if I were. I asked what day she'd prefer, she replied both, that if I was wanting to see her I'd have to pick her up as her other half needed their car. She told me she was going shopping for some clothes and would meet me at Ocean Terminal at 1pm in the car park. I arrived just before and sent C a text to say I'd arrived. She told me to drive up to the top section - there were fewer cars up there and I parked and sat there.