Ok... Threesomes. The girl-girl-guy kind -- I find the other type to be just a tad overwhelming. What can I say, I'm a giver. (HA!)

So what would it take for me to have one?
That is such a complicated question.

See, if I were to add another girl into an already pre-existing relationship that I have with a guy, I would want her to be hot just 'coz if I were to have sex with a girl, she should, at the very least, be aesthetically pleasing to me. But then, if she is hot, that would make me feel inadequate in comparison and thusly make my self-esteem just plummet.

What if I were the third person?
Another complicated question.

I honestly cannot imagine myself being involved on that level with people I already know. It would just be too weird to continue a "normal" friendship with those people (yeah, that matters). But on the other hand, I doubt I could be the "third" with a couple of people that are strangers to me because I would be worrying and nitpicking at little details that I wouldn't know unless I had some sort of pre-existing connection with them.

Conclusion?
No threesomes!