Experimenting?

I’m a 23yof and my bf (22) and I have been together almost a year and a half. He was a virgin when I met him, no longer is 😏, but I was not. I also am into women sexually as well and have experimented with a few and their boyfriends (years ago) but it didn’t turn out well. I never really did much experimenting other than that, and I would’ve liked to. I love my boyfriend to pieces and would never do anything to compromise our relationship. We’ve talked about maybe inviting another woman along eventually, but where I’m the only person he’s been intimate with, I’m not so sure he’s *that* thrilled with the idea. I also have 0 confidence in myself so I feel if we were to invite another woman I may be a little insecure. If we were to, I don’t think I’d be comfortable with kissing or him penetrating her but then again idk because I’ve only ever been the 3rd.

I feel like I’m cheating almost because lately I’ve been getting turned on thinking of me doing things with another woman, but would never act upon it unless we were both in agreement. I still get turned on by him and love him very much, I’m just so confused and hope I’m not a terrible girlfriend for it.

Does anyone have any tips on communicating that or experiences to share?