Human sexual activity
Some people have fetishes. This is a type of human sexual activity that involves body parts or objects that are not normally regarded as sexual. Fetishes of body parts (partialism) include the breasts, navel, and feet. Some people have fetishes for objects, such as shoes, clothing, lingerie, leather, and rubber. Some people with fetishes have a sexual interest in certain actions, such as choking. However, some fetishes can be dangerous, some of which may cause injury.