Bisexual Category?

[virgohippy]

Originally Posted by Greenie

That's wrong on a lot of levels.

Any guy that's been in a MMF threesome with his buddy will tell you that.

It's okay Greenie, you're among friends. We won't think any less of you because you stared at your buddy's cock while he fucked your wife. It's natural for you to want to put your cock next to his.

On a more serious note: in the real world just about any kind of sexual encounter could be bi-sexual. But in the porn market I'd probably just lean towards threesome/group because it's easiest.