The obvious criterion for stores in this category is pornography. Lots of it. The latest foothold in Pleasure Emporium's burgeoning empire (two South Beach stores and another near Miami International Airport) makes the grade with more than 4500 titles, ranging from Spanish (Latina Debutante) to bondage (Tie Me, Spank Me, Eat Me), that line the concrete walls, which are painted dark green. For those who can't take it home, sixteen private viewing rooms featuring 100 channels of films are available. There's even a small wastebasket in each one. But what distinguishes this 24-hour-per-day porn peddler from the competition is controversy. Start with its location near downtown, in plain view of top city officials at the Miami Riverside Center. And don't forget company president Renee Feingold, the wife of former Miami Beach City Attorney Laurence Feingold. Larry, by the way, is Pleasure Emporium's attorney.