Definition - What does Haptephilia mean?
Hapterphilia is experiencing extreme erotic arousal from being touched. It doesn't have to just be an erogenous zone.
Kinkly explains Haptephilia
Although many people become aroused when touched in an erogenous zone, those with haptephilia may experience extreme arousal when touched on other areas of the body. Sensation play is nicely suited for many with haptephilia.