My room mate and I are bi, no big secret really that we enjoy each other. He just met a gal from his work and brought her home after a date. We all chatted a bit, flirted, teased, etc. He joked with her to stop checking me out. I told her she had plenty to look at with him, I glanced at him and smiled. She smiled and said "what's wrong with looking at both of you?" At that point roomie and I got closer to her and started caressing her, kissing her, etc. We were all on the bed going at it in no time flat. She got really excited when my room mate joined her down at my cock. We all had fun literally until the sun came up and they were scrambling to get to work.