<I>Charisse Tyson's got it all going on . . .</i><P>She's a savvy, successful real-estate agent with a quick wit, a low tolerance for BS, a gorgeous size-14 body, and a thirst for top shelf vodka. Despite her dream house, luxury car, and appetite for life's best—like fine dining and hot men—she seems to have her own special talent for attracting players. Why do all of her ex-lovers belong in the Losers Hall of Fame? <P>There was Lamar, the hazel-eyed Adonis who sowed more wild oats than Quaker. . . Sean, an expert at juggling relationships . . . Marcus, whose lips wandered as often as his eyes . . . and others, too.      But just as Rissey swears off sex and vows to dump her emotional baggage, she meets house-hunting client Dwayne Gibson. There's no way she can resist his seductive smile and rock-hard body. . . . Will Dwayne turn out to be the biggest bum of them all? Or will this time be different?