That Katy Perry. She's such a joker.

In an interview with Nessa at 94.9 WiLD in San Francisco, she was asked a gang of sex-related questions, which she mostly passed on answering.

"I don't have sex!" she said, jokingly. "I'm a good Christian girl."

Switching subjects, she was asked if she'd ever put music out with Rihanna— ya'know, like a female pop version of Watch The Throne— which proved to be the perfect time for her to quip, "No! But we're gonna have sex."

Then she played a "hump or dump it," and said she'd hump Drake, dump Chris Brown, and hump Tupac... but only if he's a hologram.

Funny.