Katy Perry Rolling Stone September 2010 cover underwear

Katy Perry wears next to nothing on the cover of Rolling Stone. Photo courtesy of Rolling Stone

She may be the daughter of Christian ministers but Katy Perry is looking a bit more sinner than saint in the latest issue of Rolling Stone.

Photographed by celebrity shutterbug Mark Seliger, Perry is shown on the cover sitting seductively on an unmade bed in just a blush-colored bra and pantie set.

Inside the magazine, the brunette "California Gurls" singer strikes even more provocative poses, heating up a kitchen in a denim push-up bra and short-shorts; peeking longingly through beaded curtains in a barely there tie-dye bikini top and distressed cutoffs; and, perhaps steamiest of all, sitting topless on a beach in just a pair of fishnets (hope she didn't catch crabs!).

Despite all appearances, Perry, 25, who is engaged to outrageous Brit comic Russell Brand, 35, insists she's still the same sweet, God-fearing girl she always was, and even tells Rolling Stone she doesn't regret tweeting in June that Lady Gaga was committing blasphemy by portraying a rosary-swallowing, sexy nun in her "Alejandro" video.

"I am sensitive to Russell taking the Lord's name in vain and to Lady Gaga putting a rosary in her mouth," says Perry. "I think when you put sex and spirituality in the same bottle and shake it up, bad things happen. Yes, I said I kissed a girl. But I didn't say I kissed a girl while f-ing a crucifix."

We also hope she doesn't kiss her parents with that mouth.

In related news, check out a gray-haired Gaga on the cover of Vanity Fair.