Men really do think about sex more often than women do -- four times more frequently, according to a recent US study.

On average, men's thoughts turn to sex about five times a day, while women entertain sexual thoughts only once or twice daily. So... what else is new?

Just the other day, I was hanging out with one of my girlfriends, Giselle. We were talking about nothing in particular, but one topic led to another and the subject on nudity came up. "Which guy wouldn't love the sight of his woman naked?" Giselle remarked rhetorically.

That may be true, but it got us wondering what's sexier than taking everything off. After asking the men, here's what I got: Keeping some bits covered up is often sexier than going totally naked. The implied nudity probably adds to a sense of mystery, and his imagination can do the rest and, ahem,  fill in the blanks.

Here are the sexiest outfits that drive men wild:

"The sight of my girlfriend walking around in nothing but her garter belt -- it makes me want to have my way with her right then and there." -- Max, 27

"My wife in her satin slip. Brazilian waxed." -- Lo, 33

"A see-through mesh bra is an instant turn-on." -- Jeremy, 25

"When a woman wears nothing but a pair of killer heels that says she wants to take control." -- AJ, 29

"A low-cut dress." -- Vincent, 39

"I love it when my wife wears my white shirt, braless." -- Bryan, 32

"There was once my girlfriend went out with me wearing a very tight skirt. Then she whispered in my ear that she wasn't wearing any underwear." -- Gary, 26