Fetish play or lifestyle. Infantilists usually combine the submission of the baby role with the fetishes of diapers, though not all infantilists actually practice coprophilia or water sports. Some, known as diaper lovers (or DL’s), wear diapers without taking the role of an infant. Those who prefer to role play as infants are referred to as adult babies (or AB’s). Some forms of infantilism are purely regressive, without any sexual contact, however most forms include some aspect of sexuality. Where dominance and submission are involved, the top or dominant plays the role of a parent, nursemaid, or babysitter.