My best friend [M45] owns a sauna in his garden and we occasionally go there. Sometimes his wife [F42] and my wife join us and sometimes. This time, the wives were not home, so we decided to go together. As the two of us discuss anything together, we also discuss favorite Porn together. And as we were talking of porn. We both got a little hard. Before we knew, we were both jerking off and he decided to grab my cock and help me jerk. Before this I always thought I was fully straight, but I didn't want him tot stop what he was doing. When I have sex with my wife, occasionally she fingers my ass and she even once pegged me with her strapon dildo. So I'm familiar to anal play. Back to the sauna... I also grabbed his cock and started to help him too. As if it was a sign of approval he kneeled down and started to blow me. After a while I said I wanted to try it too. Don't know what I was thinking, but I think I'm more Bi then I ever thought. So I sucked him off and it actually was really nice. Then my submissive side came arise and I turned around and tried to sit on his dick. As I slowly felt it enter my ass. It felt really amazing. Much better and softer then a dildo. I started riding him and after he fucked me a little.

After a few minutes of having sex. I suddenly thought 'fuck... This isn't right' and I stopped. After I got home, I thought about it really often. Part of me wants to do it a again, but part of me is scared I guess.

Me and my wife have an open relationship and also had multiple threesomes and Foursomes. But my wife doesn't know of my bi-sexual feelings. His wife is more of a jealous type so she mustn't find out.

Should I tell my wife of my bisexual feelings? Should I do it again with him? I'm feeling kind of like a bottom slut right now. But I just want another cock in my ass...