Naughty games: should you play? In an effort to spice up nooky, some duos are stretching their boundaries. Cosmo tells whether you should too.(The Hot Issue)

A sizzling lust life requires a degree of risk. But just how far would you go to score an erotic thrill? These days, more twosomes--including roughly one-third of Cosmo readers--are pushing their lust limits to supercharge sex.

"Because our society has become increasingly sexually open--practically nothing is taboo anymore--couples are taking greater chances," says Michael Bader, DMH, author of Arousal. And while a little experimentation is healthy, experts believe that some of these new tactics may strain a relationship. Cosmo explores the games daring pairs are playing and whether to follow their lead.

Celebrity Shag Game

Revealing to your man the Hollywood stars you would love to get naked with may seem like an odd way to generate heat in bed. But, in fact, it's become a popular admission over the past few years and even came up on a Friends episode.

The rule: You and your guy pick your top A-listers (Heath Ledger and Demi Moore, for example), and then tell the other person what makes the star so sexy, the idea being that you both get a free pass to sleep with anyone on your lust list ... theoretically, at least.

According to Bader, this game has its benefits. "Letting your man know that you're aroused by other people boosts his attraction because you're showing him how sexual you are. Plus, it gives each of you insights into new traits that turn on your partner." It's a safe proposition to play around with since it's completely imaginary. But remember to have fun with it, and don't compare yourself to his chick picks. Just because he thinks Carmen Electra is hot doesn't mean he wishes your cups runneth over.

34% of Cosmo readers have played the Celebrity Shag Game with their man.