But seriously, I don't consider any of what I enjoy to be fetishes as per the technical understanding but I do enjoy some pretty kinky activities...
The lighter side:
Voyeurism - I love watching other people. Watching my wife with other people is a big turn on. Especially knowing that I'm about to join in. I'm not into the cuckold situation per se, I just like watching her enjoy herself. Watching her masturbate with a nice toy, pretending I'm not there... HOT.
Oral Fixation - There isn't anything on the human body I mind putting my mouth on. Well, eyeballs and nose are a little strange but you know what I mean. There is nothing hotter than the taste of clean, warm, and aroused human flesh. "Going Down" is a huge favorite.
Anal - Typical guy thing.

Anal sex, while not really a fetish, can be incredible. There is a caveat, I don't want anal because I'm being humored, the fact that they enjoy it is more of a turn on them actually getting it. My wife (who also enjoys anal) has a friend that occasionally joins us. She really gets into being held down by my wife while I take her anally. She requests no lube but surprisingly really never needs it.
Worship activities - Once again, its a love of watching someone enjoy themselves. There is something INCREDIBLY hot about watching someone enjoy going down on me. Looking up with pure lust in their eyes with my cock deep in their mouth.
Fisting - Yes, fisting, despite what anyone says, both the anus and vagina go very quickly back to their original tightness. What does change is over time a person learns to relax those muscles more quickly. An ex-girlfriend of mine got me into this, she loved to be played with slowly until my entire hand would slide deep into her. It was incredibly hot to be able to pull my hand quickly out of her and slide my cock into her. Feel the walls tighten quickly around me.