Navel fetishism , belly button fetishism , or alvinophilia     is a partialism in which an individual is attracted to the human navel. In , it was the second most popular fetish search on Google as per their global monthly averages. A navel fetishist can be sexually aroused by a variety of stimuli, including key words, thoughts or specific forms of physical interaction with the navel. Some navel fetishists find physical acts involving the navel to be turn-ons. The navel region is an erogenous zone with heightened sensitivity    that when touched by the finger or the tip of the time can produce erotic sensations. Some prefer to perform navel torture, a series of pain-inflicting acts such as sucking or pulling the navel out often with a syringe , dripping hot oil or wax into the navel, poking pins into the navel,  and stabbing the navel.