Is it wrong to have different colors and patterns as a sexual kink? I get turned on by the thought of skin and hair and fur and the like being naturally of a completely unnatural hue or in patterns you'd never find in nature. Closely-related to this is my material fetish, with flesh being naturally something not natural for that species (such as latex skin or grass for hair). Something being unnaturally natural. It has caveats though; someone simply wearing latex does nothing for me - but the thought of their sking being latex is another matter entirely. Same goes for skin being dyed or tattooed - it's only neat, to me, if it's easy to imagine that it's naturally like that.