So after 5 years and one child, my GF finally got sick of me lying and cheating online with guys and girls. She decided I can stay until the end of the lease which is 5 months away, but that she has a guy already. She will be going on dates with him and needs the bedrooms sometimes.
So I come home from work, my daughter is at her grandparents. I was supposed to meetup with my friends after work but they had to cancel. I hear grunting and "oh gods" coming from our bedroom. I sneak towards the door to take a look and see him, fully mounting her on all fours in the ass. The place I was NEVER allowed to go. Without a condom. Pumping her really fast and hard while she plays with her pussy. I watch as he gives it to her really fast as they are both sweating.
At the time I was disgusted, but excited. I backed away slowly, walked out quietly, and jerked off in the stairwell. Even though I am totally upset that she has already moved on and that we will never be, I am totally turned on and wish I could see all their sexual fun.
