(a) human masturbation or sexual intercourse
(b) genital-genital, oral-genital, anal-genital or oral-anal contact, whether between persons of the same or opposite sex or between humans and animals
(c) penetration of the vagina or rectum by any object other than as part of a medical diagnosis or as part of a personal hygiene practice OR
(d) touching of the genitals, pubic areas or buttocks of the human male or female or of the breasts of the human female