I voted other, because sort of? I have the two men in my life - my sub and my beau. They know about each other, and everything's okay. My sub has a cuckolding fantasy, and my beau has an exhibitionist fantasy, so my beau and I sometimes have sex on the webcam with my sub watching. After my beau leaves, I tell my sub in detail just how good my beau is in bed and how much he satisfies me.
My sub has told me that even if our relationship wasn't long-distance, he'd want me to continue having sex with other men, and that one of his biggest fantasies is getting to be in the same room with me and a lover and having me humiliate him while my lover was satisfying me.