Not Sure If It’s The Right Thing

It’s hard for me to see them as a couple. One of my good buddies and his girlfriend have become very close. I knew her way before he did and well she has or had a reputation for kind of getting around. I’m not going to lie she and I met when she worked at the same restaurant a couple of years ago. Myself and another buddy would take turns banging the daylights out of her. I mean we had her a few times together and a lot one on one. At one point the night shift manager was also getting a piece and he was in his 40s and married. She is a very cute tall long legged woman. Nice legs decent sized tits and a round little ass. I have literally been in every one of her holes and know at least 5 different people that have also used her. After I left the job I stopped seeing her and figured she would end up pregnant or with an std. She was fun but it was time to move on and i did. That is until my bushes up with her and she instantly started to hug on me saying it’s been a while. I didn’t and haven’t said anything to my buddy about our past. We hung out and towards the end of the night Heather that’s her name started to get flirty and at one point whispered that she wouldn’t mind recreating some old memories. I said that would be fun she flat out said would be way fun to have you in my ass. I tried to stop but when I left they decided to leave as well she and my buddy invited them selves back to my place. Like a dork I let them come over and they crashed at my place. About an hours after supposedly passing out I felt her crawl in my bed and started to blow me. Waking up to a warm mouth around your cock and a girl willing to let her fuck her ass is hard to pass up. Yup moments later I had her on all 4s ramming in and out of her ass and pulled out and straight to her mouth. Un loaded and fell asleep. She woke up naked running out of my room and I could hear some noise. I could hear them arguing he was asking where she as she said she was in the bathroom he asked why she was naked she said she always sleeps naked. She said she slept on the floor next to him. She pulled it off a short time later while he was in the shower she came in looking for her panties. As she was getting dressed o shoved my cock down her throat and she jacked and gave me head and had a protein shot for breakfast. Now I’ve started banging her again and feel horrible. I tell myself no more and then she’s in front of me naked and my cocks up her ass or down her throat. She sometimes spends the night and has started to try and break it off with my buddy. Now it seems like I’m the one dating the slut. I often wonder how many people she’s currently sleeping with or if I’m the only one. She’s over so many much I can’t see where she would find the time