I checked on my girlfriend and she was asleep in bed. I grabbed a beer from the fridge and sat down in my favorite comfy chair and proceeded to fire...up some pot. She sat on the couch looking at the floor, I could see she was scared and trying to think. I have an open relationship with my girlfriend and have no objection to what she had been doing and could have let her know I was not going to cause any problems. But she was always so snotty to me and my girlfriend about our open. After exchanging some quick pictures and emails I could tell he liked what he saw and so did i, his experience would compliment the lack of it on my part ! Answering the door, I'm visibly nervous. My date is in immediate control and this helps, as I like being submissive. We embrace and i can tell he is reviewing my attire. He requests the camera and I bend over, ensuring to push my ass up and out so as to be noticed, ouch ! I feel a slap across my ass ! hmmm this is going to be fun !Ouch !. After a while she had orgasm-ed during penetration and now my dick had real good lubrication and her juice was flowing onto her ass as well.. So slowly I started to enter her ass and I asked her to relax and push her ass when I am pushing in and she was doing it rite and it took us some time to completely get it in and she started to feel the pleasure of ass fucking and at the same time I was rubbing her cunt as well by which she was going crazy and garbed my hair and hurting me which gave me. I urged that this is stepping on to my personal space and he can ask for anything else. He replied that I have also given a personal pain to him hence to avenge him I will have to bear the brunt. I kept looking into his eyes. Then I thought to myself that he is really good at working these days and what if I deny to his asking for that favour???? I also thought that there is no-one in office right now and I can dominate him by the traits of his personality hence I decided to earn some.