Muscle worship (also called sthenolagnia) is a social behaviour, usually with a sexual aspect (a form of body worship), in which a participant, the worshiper, touches the muscles of another participant, the dominator, in sexually arousing ways, which can include rubbing, massaging, kissing, licking, "lift and carry", and various wrestling holds. The dominator is almost always either a bodybuilder, a fitness competitor, or wrestler—an individual with a large body size and a high degree of visible muscle mass. The worshiper is often, but not always, skinnier, smaller, and less fit. Muscle worship can include participants of both sexes and all sexual orientations.