Well, theoretically if you are having any kind of sexual interaction with the people of the same gender you are are by definition bisexual. The trouble is there is so much stigma attached to the word that a lot of people are not not able to be honest with themselves about it. You see so many who say they are straight but like sucking cock, or whatever specific bisexual activity. As JandKinBoise said, there is a huge range of bisexuality - and it NO BIG DEAL. The problem I see for those who take part in bisexual activity but claim they are straight is that they either subconsciously or consciously feel like they are doing something wrong. That's a recipe for some psychological problems, guilt, etc. You can be just a little bisexual or a lot (or 100%) or only occasionally indulge, but you really need to be comfortable with it and not feel like you are doing something wrong. Personally I don't believe anyone is truly 100% straight - maybe 99.9%. It's not a black and white thing, it's all shades of grey. I think that those homophobes who do the most "gay bashing" are probably running as hard as they can from their own little secret inner feelings and over compensating. And a lot of men who do that are just fine with the idea of women playing together!! Hypocrites!! Why is it that it seems to be more acceptable for women to have sex together than men!! It can't be all about the macho man thing because frankly some gay men are pretty macho. Human beings are often so strange, complex and confused. Personally I'm bi and perfectly comfortable with it. Can't say I'm truly 100% bisexual because I'm virtually always sexually submissive to other men - I can be orally versatile but only if they want it - but with the right man I can be into the "kissing and cuddling" part too. But I am not romantically attracted to men - it's all about the physical sex. Maybe that's where the gay part of the equation comes in - the romantic attraction? BTW: My wife loves anal sex too and she pegs me with her strap ons (for the record, good but not near as good as the real thing.)