Odaxelagnia
Odaxelagnia is a paraphilia involving sexual arousal through biting, or being bitten. Odaxelagnia is considered a mild form of sadomasochism. The bites can be more or less intense and occur in various parts of the body, e.g., on the arms, shoulders, hands, and occasionally on the genitals. Odaxelagnia is sometimes associated with sexual vampirism, but most forms of sexual biting do not involve bloodshed.
Alfred Kinsey studied odaxelagnia, reporting that roughly half of all people surveyed had experienced sexual arousal from biting.