No way, i'd be scared that they'd conspire against me, or talking behind my back, and i'd get jealous if i felt like one of them liked the other more than me. It would drive me crazy.
I'm a one man man.
The only way i can imagine it working is if I was in love with someone who was a total top, and then we had a guy on the side that was just for sex or something, but neigther of us were emotionally connected with him, we just used him for sex, then maybe that could work. It would still be too complicated and not worth the effort though i think.