This is my girlfriend and I can't make her to stop fucking my friends.
The first time I caught her, she was fucking two of my best friends on my couch at the same time while I was on a beer run. I had to go back to get my wallet and I walked in on her getting finger-cuffed really fucking hard. I tried to beat them up, but I was outnumbered. They made me watch.
I dumped her. She then proceeded to fuck 7 more of my friends over the next month. Eventually, I ran into her at a party and she instantly started flirting with me. I caved because I was drunk and horny. I hadn't had sex since we broke up. She led me into the bathroom, sucked my dick and then let me fuck her standing doggy while she grabbed the sink. She was looking into my eyes in the mirror, begging me to cum inside her, so I did. She sent me a text message later that night saying I could get pussy from her any time I want because she loves me.
We started fucking again. She told me she was still in love with me. I was still in love with her so I decided to forgive her and we got back together. Three months later, after a doctor's appointment revealed I had Gonorrhea and Chlamydia infections, I found out during an explosion of drama that she had never stopped fucking my friends. They said that she had told each of them that they could get pussy from her any time they wanted it. My girlfriend was cheating on me with like 9 guys, sometimes 3 at a time. They acted like it was my fault for being dumb enough to date her.
Broke up again, I caved two weeks later. She begged me to take her back while in tears. She told me she never stopped loving me and said she was sorry that she was a nympho. I told her that I would take her back if she promised to stop fucking other guys, but she refused to make that promise this time. She said she's not going to lie to me anymore.
I have to accept that she isn't capable of saying no to a guy who wants to fuck her if we're going to get back together.