Plot only gets in the way of enjoying softcore flicks, but since The Key to Sex (1998) is a softcore classic, let’s get the plot quickly out of the way. A lucky stud is slated to watch over a lush mansion for his boss. OK, that means all the sex scenes--of which there are plenty--take place in classy settings. While Christian Malmin’s twin butt checks are firm and squeezable throughout, it is the adorable and irresistible Scott Carson who steals the show with a fine thrusting performance in a bubbling hot tub. And that’s the key to sex.