Does anyone else have a relationship where their girlfriend regularly entertains their cuck fantasies but doesn’t actually sleep with other men?

My girlfriend (23f) and I (24m) have always had great sex, we both finish and I think the only thing is we wish we had more sex, but this is mostly a time constraint thing.

I told my girlfriend over a year ago that I’d love it if she had sex with other men and we was very receptive to it, and seems to want to sleep with other men, but I think finds it daunting as well. Something we’ll do is she’ll give me a handjob and talk about wanting other men, or lightly humiliate me for having a smaller penis. She can be very dominant and I think it definitely plays into that for her, if I’m completely honest I think she would be satisfied with a monogamous relationship, but we both love indulging in this fantasy.

What’s funny is I love the thought of my gf’s sexual past but it has been relatively disappointing for her, before me she was with a guy who was really hung and incorporates that in her teasing of me, but I know the sex was bad for her and she never pretends it wasn’t. I prefer when she’s honest, and the times when I can tell she’s actually been horny for another guy are my favourite.

My gf will tell me when she finds another man attractive, and what she’d like to do with him which always excites me. She’s been on dating apps a few times and had light flirtations with other men. The closest we’ve come to actually doing it is when we almost had a MFM threesome with a guy in another city while both very sexually frustrated but alas did not have time.

I’m curious if anyone else has a similar situation with their partner, and if they know of other ways of entertaining this fantasy that don’t quite involve her having sex with another man, although I think this will happen at the right time, with the right communication.