My room mates girlfriend tied him up and left him there. I walked in and was shocked to see him that way. It also turned me on… I went to help him and once I figured out how to untie him, I thought that it would be the perfect time to get what I wanted sexually. He had a boner and loved sucking my nipples when I put it near his face. He loved it when I rode his cock and let him cum in me! I did things to him his girlfriend would never do. I tried to fuck him so good that he would dump her for me.