I'm a guy interested in receptive anal sex: does that mean I'm gay?

I'm a 16 year old boy, and for as long as I can remember I have been attracted to girls and yet rarely able to feel comfortable around them and get to know them. I've always been a nice person (the friendly guy) but without that many actual close friends who are girls. Recently I've noticed I am turned on (and everything that follows that) with the thought of receiving anal....

I want to come out to my friends, but how do I make sure they'll accept me?

I'm bisexual, and I really would like to tell my friends. I mean, they seem pretty open-minded, being pro-gay rights and generally accepting. The thing is, they're being open-minded from afar. If they found out that one of their closest friends is bisexual, I'm not sure they'd be too keen on the idea of having a bisexual girl friend....

The ABCs of Size Bias

Body image ideals, like race and gender, are social constructs that have grown out of a combination of history, politics, class, and moral values. One need look back only a few generations, or across cultures, to see that attitudes about thinness and fatness are fluid and ever changing.

I think I might be bisexual, but I really do not want to be.

I'm 17yrs old, not sexually active, never had a boyfriend (and I'm more than fine with it). Ever since my friend came out as bisexual, I've had this horrible feeling that I might be too. I've thought sexually about women for a few years now, and occasionally look at female porn. I just assumed this was normal, straight-girl activity, even though I don't think about guys as, um, graphically....