Is it normal to like men's feet?

Hello... So I'm a guy and I am really into other men's feet. I don't know when exactly this started but recently found myself noticing and admiring the feet of men around me. I would be on the train and stare at men's shoes (especially if they were wearing those sexy work shoes and flip flops). I started saving pics I found on Tumblr and following blogs centered around appreciation of male feet as well. I personally don't think I have an obsession persay. I just like feet more than most people do and I know foot fetishes are common. But I can't help but feel sometimes that something is wrong with me because of this. I'll post a pic of something I find really hot and you tell me what you think. Am I normal?