So last night I ended up going to hang out with my girlfriend and one of her friends. We chilled at the friends house and drank a bottle of wine,while we just talked and had fun. The friend was only wearing like a bra with a see through, lace attachment. Basically lingerie. And I couldn’t help but to “enjoy it” lol. Anyways we were heading out and my girlfriend told me on the way to the car that she really wanted to make out with her friends but was scared to ask. I told her I’m fine with that I don’t mind if she kisses girls at all. She realized she left her phone charger in the apartment and was going to need it. So she texted her friend to see if we could go back up. She also asked her over text if they could kiss. So we go back up and go into the girls bedroom and she invites me over to the bed to “cuddle” with them. they start kissing and I’m watching and I get really turned on, so I start kissing my girlfriends neck. We all end up undressing slowly as they make out and I feel up my girlfriend’s body and kiss her back and neck. They start touching each other and moaning, and I start touching my girlfriend as well. And then my girlfriend Invites me to start making out with both of them. I start getting more comfortable and start touching the other girl. And pretty soon she asks me to start fucking my girlfriend while she watches. While we’re having sex her and my girlfriend are playing with each other and my girlfriend is fingering her. At some point im grabbing her ass firmly and fucking my girlfriend until she finally cums. We go back to making out and all 3 feeling each other up. My girlfriend bend over and I’m hitting it from the back while they play, this goes on for a while, until my girlfriend finally gets up and says “I think I’m done”. The other girl tells me I did really good and said since I’d be sleeping in the living room she’d leave her bedroom door open in case I “needed anything”. We got dressed and went to sleep in the living room. I didn’t go do anything with the other girl because this was all really unexpected and in the past when I’ve mentioned threesomes to my girlfriend it’s just caused huge arguments and so I left it alone. So when this happened I tried my best not to cross any boundaries and get too involved with tho their girl. At the end of the day it was hot! I got to live out somewhat of a fantasy I’ve always had, and my girlfriend really seemed to enjoy it. Only thing I regret is that I never allowed myself to cum, just in case I did end up fucking the other girl. I wanted to make both of them cum. But this morning me and my GF talked about it and she says she enjoyed it and it was hot but she does feel a little weird about it and she doesn’t know if she’s do it again. She said if we end up doing that more she wants it to be a MMF situation so it’s fair. I’m bisexual and I have fantasized about that but I’m like 85% into women, and I think when ivolving men it’s a whole different ball game, and they’re not as easy to trust. Anyways I would’ve been fine if that never happened, I wasn’t expecting it at all, it really was my girlfriends choice to initiate that. so I’m hoping that’s that and it doesn’t get turned around on me where I’m kinda forced to let another man be involved. If it happens naturally then it’s fine, I think that’d be hot too. But if there pressure for that to happen I don’t think I’ll be comfortable and it might ruin our relationship.

Edit: I’m 23M My Gf 25F and the other girl 28F