Married and Attracted to my female BFF.....

So....I’m married (not even a year yet, but been with him for over 6 years) and I’m attracted to my best friend who is bisexual. Me and my husband do a little fantasizing about some of our friends (mostly girls, but a few guys as well) and imagine what it would be like to have threesomes with them or to just watch one of us have fun with the friend.

Anyways, I’m finding myself more and more attracted to one of my closes friends (who I’ve be friends with for over 10 years) lately and wanting to tell her, but don’t want to ruin the relationship. I don’t know if it’s because I could be bisexual myself (never been with a girl, but have urges that I haven’t acted on) or if I feel the need to try to fill that space for my BFF because she has never been in a good healthy relationship before. She always goes for the guy/girl that treats her like shit and cheats on her.

I feel the urge to tell her how I’m feeling and just see where it goes, but I don’t want to make things weird between us or anything like that. My husband knows how close me and my BFF are and he knows that I’m attracted to her and it doesn’t seem to bother him (probably because he is also attracted to her).

But I’m unsure what to do or if I should just keep how I feel to myself....I just don’t know what to do....any advice?