We went to a concert with our friend and on the way home the talk got dirty. He knew me ex and i were both bi and when we got home, she invited him into the house where she promptly got on her knees and pulled my dick out and told him to do the same. She sucked us both for awhile before she told him to sit down. She got on her knees and started sucking him while I got behind her and started fucking her from behind. I leaned over her shoulder to watch while I just kinda laid there with my cock in her. She is really short so I was right there next to her with a close up view. She pulled off and offered me his dick, I didn't hesitate and quickly sucked him into my mouth while she went to work on his balls and ass. He didn't last very long before he grabbed my head and came really hard. This made me really close to cumming so I started gyrating my hips and I blew my load within seconds. My gf hadn't cum so she laid on her back and started playing with her pussy while we watched. When she came, my friend got cleaned up and left but we stayed right there and kept fucking and ended up getting out the strap on. It was a very memorable night!!!