Me and my GF have been doing this we were 26. Both now 32 and together since we were 24.

It evolved from dirty talk about her slutty fantasies to us realising we were both turned on by her fucking other guys. Cue her making a tinder account and the rest is history.

We live in a young person area of a major city so she’s able to do meet ups easily. We still don’t live together (we both have a really good rental situation we don’t wanna give up) but aren’t far from each others houses.

She has roommates that she gets on with but they’re not exactly close friends. We agreed to tell them that we were in a normal open relationship since they were inevitably gonna see her bringing different guys home.

It does make me feel a bit awkward around them cuz I know there’s been a pretty high volume of guys come through there over the years and I feel paranoid at times it’s a talking point they sort of gossip over but for some reason it protects my ego for them to also think I’m fucking other girls?? It’s stupid but we all get on so whatever.

Anyway all of this context is relevant because at her birthday this recent weekend we had a biggish house party at her place. Once the attendees was an old friend of hers and one of her few regulars. She was fairly drunk and wanted to fuck him (we’d dirty talked about this).

I was ok, the party was full; it’s a big house and she has a lock on her door, I figured she’d have a quickie with him then I’d go take my turn.

A few of our mutual friends approached me asking for her because she had their coke and cigarettes and I said she’d gone out to get more alcohol but for whatever reason they went upstairs in search of her and found her locked bedroom.

Apparently they started knocking whilst he’d started fucking her, she panics and talks to them through the door as her and fwb frantically get off each other. She’s unable to think of a reason to not open the door (‘I’m just changing I’ll be down in 2 minutes’ would have sufficed??) and opens the door a crack to hand them what they want. They barge in and seem to detect a ‘vibe’. Obviously I don’t know if this is my GF being paranoid and they were completely oblivious but she insists it was suddenly awkward. She told them they were just about to do some coke so, kinda plausible but still.

The next day those who stayed over (including the bedroom intruders and FWB) went for breakfast and maybe it was the hangover but I swear the vibe was weird.

I’m really unsure if I should address this. The only people who know about the ‘open relationship’ are her housemates, and that’s only by necessity. I don’t want to explain to our friends we’re in an open relationship to save face when I might not have to, but I don’t want them to think I’m being cheated on, and if they actually didn’t suspect a vibe I don’t want to bring it up unprompted and then have them suspect I’m covering for something.

Any advice guys? Appreciate this is a tough one.