Okay to make things clear it wasn’t my fault at all I was just there for the fun! So one of my close friends (we are not friends anymore) started talking to me about how her boyfriend mentioned that he thought things were starting to get stale in their sex life after their 3+ year relationship so she told me that she wanted to surprise him with a threesome and that she was telling all this to me because she knew I have fooled around quite a bit before and she trusted me in that matter, I was shocked because it came out of nowhere but of course I wasn’t going to say no to her. So the day came and I went to their house with some sexy lingerie under my clothes, I was prepared for the job as you would say haha, anyways it all started well until he started focusing more on me than on her, she got super jealous after a while and stormed out of the room but he kept fucking me until he finished and then went after her, it was pretty awkward after that so I left. I found out they broke up that same week and she never talked to me again. I felt super bad about it but it wasn’t really my fault so yeah.