14/03/06 22:37:59.65
MOST IMPORTANT
S-O covalent bond :
Sexual intercourse between Prof. Sasai and Ms. Obokata should be necessary.
Sexual intercourse, or coitus or copulation, is chiefly the insertion
and thrusting of a male's penis, usually when erect, into
a female's vagina for the purposes of sexual pleasure or
reproduction; also known as vaginal intercourse or vaginal sex.