I Caught An Older Man Fucking My Gf And He Ordered Me Out The Room

I had an argument with my gf one night and left to stay at mine. I wanted to make up so headed around hers late at night. When I got there the door was unlocked so I let myself in. I then started to head upstairs and began to hear sex noises. I pushed open her bedroom door to find an old man from her work, probably late 50s or early 60s, fucking her doggy style with a collar around her neck and him tugging her head back with a lead.

I shouted wtf, and they both spun around shocked to see me. Before I or her could even say anything, he shouted at me to get out. I said wtf, and looked at her and she just kind of shrugged her should at me with a sorry look on her face. He then shouted again to get out and shut the door. I walked out and slammed the door. I then heard them through the door begin to fuck again and her moaning. I went and sat in the lounge downstairs and sat there listening as her bad banged against the wall.