VANITY 6 (Warner Bros.) :: If the Ronettes had sung about sex and guys the way that Vanity 6 so, their mothers would have washed their mouths out with Lysol. But firmly planted in the Minnesota-based Prince The Time (who guest as the musicians) shcool of to-the-sexualpoint, funky/sassy dance music, Vanity, Brenda and Susan (no last names, perhaps to help avoid Morals Squad prosecution) have no use for coyness. “If A Girl Answers (Don’t Hang Up)" is a classic, unedited confrontation over the phone between two women who claim title to the same man: “Did he just take out the trash?” “No, that’s something he used to do; now he’s taking out me.” “He’s So Dull,” a farfisa-flavored hand-clapping, giddy girl-group “homage,” is the penultimate pecker shrinker, while the top prize goes to “Nasty Girl” for lines like “Is that it?/Wake me when you’re done.” Unless a guy’s got “seven inches or more,” warn Vanity, Brenda and Susan, he may never get to be “the number one star of my [Vanity’s] wet dream.” Cup protectors, anyone? J.F.