For my girlfriend (BiMFM)

In high school I was actively bisexual. I had a girlfriend but would occasionally fool around with one of my guy friends. Eventually I came clean to my girlfriend and, as I suspected, she was sort of into it (she wanted to know how big his dick was!). At some point all three of us were at his house and she told me she wanted to see him fuck me. He and I actually hadn’t had sex, I mostly just gave him blowjobs, which I loved doing for him. So I was reluctant to let these two worlds collide but after a few more beers I said if she wants to see it, she can tell him. And she did. To my surprise and hidden joy, he agreed. She told me to get naked first. Then she told me to get on my hands and knees. She stripped down to her underwear and bra and sat on my ass in reverse so she could watch him fuck me. She told him to get naked. Even though I had fucked my self with various toys and devices, I had never actually been fucked by another actual dick so I was a little nervous. Once she started rubbing the baby oil on my asshole though I was ready to be fucked. It wasn’t part of the original plan but she started jerking him off with the baby oil, to make sure he was nice and hard. Once he got on his knees and into position, feeling her spread my ass, I was so excited for his cock. The feeling of his head up and down between my lubed ass was something I’ll never forget. Once his cock was in me and he was fucking me, i took it pretty well. I could tell my girlfriend was really getting off on it. She was pulling him harder into me. Telling him to fuck me like he was fucking her pussy. I think at one point they were even kissing. I didn’t really care, it was all so fucking hot. It didn’t take long until he was ready to cum. Feeling him cum inside me was one of the best sexual experiences I’ve ever had. Immediately after, my girlfriend was so turned on she rode me until we both came, while my buddy lied next to us on the bed.

Source: reddit.com/r/sexystories/comments/c60nop/for_my_girlfriend_bimfm