I've always thought about me been straight. I'm 21 now. But during the last years I've been very active in viewing both male and female nudity online. So I became a bisexual for a time. I've never had sex with a man though, it was only watching pics. But at the end of 2008 and the beginning of this year I realized as I've watched a thousand of male nudity pics that I am now fed up with male nudity. Now I'm more like watching only to see if there are some guys that look like me so I can use those image as a confidence-booster (Wow, he looks just like me and people find him hot, so I'm hot too, maybe my attitude sucks). Images of naked men or men with bulges are not interesting for me in anyway anymore - there were times I even used to turn horny and become hard. But it almost never happens nowadays. When I see a pic of a naked guy now I just thin: "Yeah, whatever..." and I am not interested. I only use pictures of bulges as reference to see what clothes reveal more of your junk in order to know what to buy, but I almost never get horny when I see them. I just go "So you've got big balls or dick? So what? My balls are as big/bigger than yours." or something like that. I am not fed up with seeing naked women (especially pics of boobs and nice female asses/vaginae) Does this mean that it was just a phase, that I am a straight guy or what? I don't know what to think since many people say that you can't change your sexuality. I'm totally confused. Have some of you ever underwent such a drastic change in taste over time?