what is first base, second base, and third base in terms of sex?

Must Be 18: The relationship bases are: 1st - kissing with tongues; 2nd - touching of the genitals; 3rd - oral sex; 4th - sexual intercourse.
Updated on Monday, February 06 2012 at 08:53AM EST
Collections: second basethird basetonguesfirst basesex organ