Technically a fetish is sexual arousal by an object: like a shoe fetish. I'm using fetish in the colloquial sense that includes fetishes and paraphilias. I'm not sure normal/abnormal is an issue here. I mean, how many attachment units +1 does it take for a balloon fetish (yes, it's a thing) to become abnormal? Then again, fetishists of all types outnumber LGBT so who exactly is more "normal?"