Help Accepting/Dealing With A Weird Fetish?

So I've had a female masking fetish for my entire adult life. ( Something like this: http://www.vice.com/en_uk/read/female-masking-men-latex ) I've never indulged in it seriously, but I masturbate to videos and fiction about it. I'm deeply ashamed of it, and I think it's that shame more than anything that causes me trouble getting and staying erect with women. Any advice for dealing with or accepting an unusual desire so I can be freer with somebody I really care about?