Katy Perry has reportedly said she would like to have sex with Jennifer Aniston's former boyfriend, John Mayer.

The I Kissed A Girl Star is said to have made the revelation during a game of Shoot, Shag or Marry on Australian radio.

When asked about John, she apparently replied: "I couldn't marry John Mayer, it'd be so intense.

"I'd definitely shag the sh*t out of him though. I'll go on record saying that."

Katy apparently picked Fall Out Boy's Pete Wentz as the man she would most like to marry during the game on 2DayFM.

The singer described Pete, who is married to popstar Ashlee Simpson, as “a good dad”, The Sun reports.

Katy rekindled her relationship with former Gym Class Heroes boyfriend Travis McCoy in April.

The pair originally dated each other last year, but split in January amid reports Katy wanted to focus on her career.

Katy Perry