You can't carp at Karp. He has, and provides, too much fun. His first novel is male adolescent wish dream -- no, post adolescent--no , middle-aged-- no...well let's admit that two girls for every boy would drag more male votes than a chicken in every pot or a good 5f cigar. Maynard Ricefield is that Manhattan pearl beyond price, a thirtyish bachelor, an employed musicologist and an active, even dedicated, heterosexual. Clarissa Chutney, a grade school teacher, is his first, anxiously willing victim. Audrey Tumarkin, Clarissa's best friend, just divorced and itchily ready, had the gall to be around when Maynard took Clarissa out for the first time. Her presence gave Maynard an idea. (Maynard has lots of ideas as the book amply shows, but seduction is his constantly recurring idea.) What a man maynard! Three nights a week its Audrey. Three more go to Clarissa. One, he uses to compose -- himself and some music. It bounces along as easily and buoyantly as a Beautyrest toward the inevitable double discovery and it's fast and it's funny. A couple of passages of the really offensive four letter words is Karp's comic bow to art. If his book editor wasn't willing to cut it, Hollywood will -- the situations and the dialogue seem screen-ready. And the publishers think Doobie Doo is popularly indubitable.