Research and read anout Tricophelia. Or Hair Fetishism. It has nothing to do with porn, nudity, or genitalia. That's what makes it different. Arousal centered around HAIR. Other acts of sex may be combined with a hair fetish but in answer to your question - it's all about the hair.

In my opinion, hair satisfies all 5 senses. SIGHT. TOUCH. SMELL. TASTE. SOUND