You're a man. Your sexual buttons are pushed easily, as marketing experts, pornography producers as well as Hollywood moviemakers will prove daily. Almost anything - that is advertized with the man in mind - has a hidden sexual motive. Nearly any movie has hidden persuaders deliberately incorporated and pornography of course is obvious. While the objective usually is to make you buy someting - a car, a movie ticket, a soft drink or whatever - the side-effect is that you get turned on subconciously frequently during the day.

Within a BDSM context the daily "turn ons" are even bigger, since you will - conciously or subconciously - be attracted to many more fetishes, such as leather, high heels or even a dog collar.

Fetishism is perfectly normal

The social conditioning, that we talked about earlier, brought about something else: stygmatizing "fetishism" as abnormal. Of course, if sex is a reward for good social behavior, you (the government or the religion or whatever other regulator) don't want other incentives that produce a similar effect to what you want to achieve, so you condemn everything else as "wrong".

The current double social standard is that fetishism and non-mainstream sex are still largely condemned by such powerful and influential social entities as governments, religions, feminist action groups and others, while society at the same time will praise Steven Spielberg (ever wondered why "Jaws" is so appealing?) as a contribution to society, Hollywood still is the major source of visual entertainment (which includes movies such as "Basic Instincts") and girl-popstars like Britney Spears try to convince the world that their "ooohs" and "aahs" have no sexual connotation whatsoever and they're NOT a sex symbol.