 The innate sexuality of bloodsucking can be seen in its intrinsic connection with cannibalism and folkloric one with incubus @-@ like behaviour . Many legends report various beings draining other fluids from victims , an unconscious association with semen being obvious . Finally Jones notes that when more normal aspects of sexuality are repressed , regressed forms may be expressed , in particular sadism ; he felt that oral sadism is integral in vampiric behaviour . 
