I'm into it for for the right woman. I'll suck her boyfriend's cock if she watches and encourages, and then lets me fuck her.
Here's one of my faves:
http://galleries.aebn.net/beta3/index.cfm/fa/gallery/genre/bisexual/clip/0096/refid/AEBN-002543/tid/14343/layout/mgp_layout2.cfm