What's the noun for paraphiliac? Here's the word you're looking for.
paraphilia
An abnormal sexual attraction, typically of extreme or pathological nature.
Sexual arousal in response to sexual objects or situations which may interfere with the capacity for reciprocal affectionate sexual activity or lead to clinically significant distress or impairment (e.g. are obligatory, require participation of non consenting individuals, lead to legal issues).
“I guess I'm kind of a cat racist, though these comments are more on the level of sexual paraphilia.”
“Your girlfriend may not be aware that she has a fetish, but odaxelagnia is a documented paraphilia that was written about in the Kama Sutra.”
“Although the diagnosis of preferential rape paraphilia appears in the psychological records in 1991 while he was incarcerated, he was not treated for this condition.”
“This allows concentration on counseling without as strong a distraction from the paraphiliac urges.”
“A more recent increase in the population of paraphiliac residents led to the opening of a section for vulnerable residents.”
“On an M. R. I. color-coded image, the aroused paraphiliac brain might look like a lobe of scarlet activity, whereas the aroused normal brain might look like, well, a normal brain.”