Not a usual setup. [cuckold]

I know this will be an unusual question, but I’ll write it down anyway in case someone has some thoughts. I’m a lesbian, my girlfriend is bisexual, and we’ve been together for eight years. We’ve talked several times about how we’d both be interested in trying out a cuckold-type dynamic (if it can even be called that in our case). My partner is very drawn to the idea of being with a man in front of me, and I love the thought of seeing her that way too. We’ve always had a very open and honest relationship, and communication has been the core of everything we do together. Obviously, this setup isn’t exactly typical, so I’d like to ask — from more experienced couples or bulls — if you have any thoughts or advice for a couple just starting out in such a situation? Will we be considered unusual in this community at all? Thanks in advance, and I really appreciate any perspective or shared experiences.