How can I ask my guy friends to have a three way with me?

Not to be overly confident, but I'm an attractive woman. Both of my "guys friends" have a strong sexual side in which they are very verbally intimate with me, and on occasion I've had sex with both of them. Guy #1 is more exotic than the other, and has said that he wants a three way with me and another male. The only issue now is figuring out a way to ask Guy #2 without him freaking out, for some reason a three way with his best friend is seemingly "crossing swords," Guy #1 has joked about a three way to test the waters. Any ideas on how to get Guy #2 to go for it?