the act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur
3
sitting
the act of assuming or maintaining a seated position; "he read the mystery at one sitting"
1
sleeping
the suspension of consciousness and decrease in metabolic rate
1
penetration
the act (by a man) of inserting his penis into the vagina of a woman
