I looked at the crack of her ass, and my cock became instantly hard. I rubbed the bulge in my black dress pants and I took off my black button-up shir.... I knelt down beside her and examined her ass cheeks carefully. I spread them apart then pulled down her thong. Her thong was wet with her juices and I slapped her ass hard while muttering, "Aren't you a dirty little whore?" She wriggled and pushed her ass back towards my face. I slapped her ass again and yelled, "Are you a dirty little whore?" . I peeked around the bodacious girl in front of me. She turned her head to look around. I kinda of moved so she could not see me. Of course all she had to do was turn around. The doors to the train closed.The next stop was ten minutes later. I kept my eyes on the big round ass in front of me. My cock was trying to bend the tight lyrcia shorts open as I was so turned on by the hot BBW in front of me. Her perfume was driving me mad. Her whole body shook. I was about ready to explode in my bike. While on the dance floor he rubbed my back as I let my arms circle his neck. Then I felt his hands on my ass, kneading the flesh of my cheeks. This black man was working me into a sexual frenzy and he knew it, and so did Tim. Mark asked me if Tim and I had an open marriage, and I told him of Tim?s desire to watch me with another man. He said he had an apartment not far from here and asked if we would like to go there for a nightcap? I told Mark that I would ask Tim, but I thought it would be. She was in such a daze, she didn't remember walking with him to the coffee shop in the station. She didn't remember telling him what drink she would like. She didn't even remember him paying and directing her to a table in the corner of the shop, next to the toilets.They sat at the table for God knows how long, just talking. Finding stuff out about family, relationships, work. You know, the usual stuff, before he said it. The one thing she was secretly wishing he would say."I have to say, I'm.