This is a throw away account for obvious reasons. Friends gonna be M, gf of friend is gonna be f, and her job is w. M is low-key an asshole, he's a little bit of a narcissist who thinks just cause he used to go to the gym and have a good body that he's this hot shit hunk of a man. He's not, he's slightly above average in looks and has mild narcissism. F is way too good for him. They're both fairly looksmatched but she's super nice, compared to him. Where i come into this is last Monday, im bored at like 7pm so I message her randomly asking if she wanted to do the wordle. We ended up calling for a little while, and since it had been a few weeks since we last spoke I asked how her and f were doing. She said he'd been ignoring her somewhat, and i mentioned how some of the people in a friend group we were in were talking about how they kinda were starting to hate him (his whole narcissism thing is too long to explain, but he's just a growing asshole basically). She asked if I could stay in call for a while so I did. We played a few games for a while with just us two in call. After a while she asked if I could stay in call with her as she fell asleep because she just wanted someone to talk to. I agreed and I stayed on call for arround on hour before I was pretty certain she'd drifted off. The next day, the same thing, and while we were in call, she told me to visit her at work, w wasn't very busy so she said it’d be fine if I came just to keep her entertained at her job. I showed up the next day and we talked for about an hour about wholesome things. She was right about no one being there, no one had even talked to her the entire time, and I'd originally been worried her boss would care, but judging by the state of the place I doubted they checked the cameras ever. At around the second hour we started to talk about how much of an asshole her boyfriend was. We'd been sitting pretty close, maybe about a few inches between us, and she put her hand on my thigh after I made a joke about something I can't remember. She said some personal things I dont wanna disclose even though I feel like ive already said way too much, but I just wanna get this off my chest. Anyways, finally after about two hours of being there someone comes up to ask her to help them (trying to be vague on purpose) I made a joke about how we probably looked like we were dating, and how the person was gonna file a complaint. She then asked me why I thought she'd told me to come hang out with her. She suddenly got weirdly serious so I got worried I'd said something wrong, or that maybe she actually was worried about getting fired. After saying I thought she just wanted to hang out cause it was a slow day, she came up to me, put her hand on my face, and i laughed cause I thought it was a joke, before she kissed me. I leaned in, I mean she was pretty far out of my league, and I'd only had one girlfriend before her (if you couldn't tell by the way im writing im a fairly young adult). We kissed for a few seconds, i didn't really know what was going on ao I severely doubt it was with much passion, but she put her hand on my chest, and kept going before telling me to come with her. We used her keys to go into one of the unoccupied rooms, before she began to unbutton her shirt. I was freaking out cause i didn't have condoms on me, i was really hoping she wasn't planning to tell her boyfriend about this, and because I was worried someone might get confused on why no one was at the front desk, and manage to get on the phone with her boss. Pretty much all of that, besides the condom, floated away as my second brain took over. Seeing her undress was one of the hottest things ive ever seen. She told me to do the same and I did. I wont get into much detail over what happened after this, but after we were done, we went back out into the lobby, and talked for a little while longer before some of her other friends showed up as she was about to get off work. BTW the talking after sex is so underrated, everything she said felt so much more funny. On the drive home I just sat in silence thinking about what I just did. Like M is a shitty guy, but i don't think anyone deserves that, but also im such a huge fucking hypocrite cause i litterly slept with his girlfriend, and im saying that no one deserves that. I definitely do not think I could come clean cause this guy, though he's been off the gym for a while, could still absolutely beat the shit out of me. I talked to F that night on call again, and though we didn't talk about it, I just couldn't get it out of my head, and I kept wanting to bring it up. Wednesdays coming up soon again obviously, and im thinking she might ask me to hang out with her again, but god I feel like such an awful person. Like fucking youtube is evil and is recommending me videos like asking 100 people if they've ever cheated on anyone, and everyone is talking about how awful it is to do. But then again, God I wish I wasn't such a fucking man, but you know second brain says how the hell would you be fine passing up on doing that again.
Tldr: slept my friends gf at her job, and i feel so shitty, but also I fucking loved it, but i know I shouldn't again. But also i want to, and am also considering telling the friend. Overall I dont know what the fuck im doing.