Cheating on my friend with his girlfriend

I was hanging out with my buddy and his girlfriend, and things got heated. I couldn't resist fucking his girlfriend, making him watch. It was a wild ride, but we both enjoyed it.

I've been best friends with my buddy for years, and we've been sharing everything from video games to our girlfriends. We even played some Roblox sex games together, but that's another story. Lately, my buddy's been acting weird around me, like he's got something to hide. I finally found out what it was when I saw him fucking my girlfriend. I was completely dumbfounded, and I didn't know what to do. I mean, she's supposed to be off-limits, man! But I couldn't just let it go, so I joined in and started fucking her too. She's really a slut, I can't believe my friend never mentioned that before. I guess he didn't want to lose his chance with her. Anyway, we all had a great time fucking, and now I'm not sure if I should tell my friend or not. Maybe I'll just keep it to myself and continue banging my friend's bitch whenever I feel like it.