Images of Holly Madison nude? Hot!

Images of Holly Madison nude, legs spread around a thrusting, naked Hugh Hefner? Not as hot.

But the Playboy Bunny and number-one girlfriend of the magazine's founder told Us Weekly that while she may not be knocked up yet, it's not for a lack of fornication.

"There has been lots of trying �" lots of trying!" Madison said at Playboy's Ninth Annual Super Saturday Night bash in Arizona.

Hefner, meanwhile, was tight-lipped when asked if they have plans to tie the knot.

"There will certainly be a lot of romantic years ahead, but a wedding we will see," Hef said, oblivious to the fact that he's pushing 117 years old.