Reality TV supercouple Heidi Montag and Spencer Pratt are revealing a little too much information about their sex life in the pages of the new Playboy magazine.

Montag strips for the men's publication and features on the cover of the September 2009 issue - and her new husband interviews her inside.

After chatting about their very public life together, the talk turns to the pair's sexual exploits, with Montag confessing she experiences 20 to 30 orgasms a day.

She says, "Before you, sex was just something that happened. Now it's something I look forward to every minute of the day."

Pratt adds, "I never imagined in my whole life I would meet a female as sexual as you are. Most girls are usually just about themselves."

Montag then comments, "It makes me happy to see you happy. Like when we do it in the car."

Her husband then recalls private plane sex on New Year's Eve, when "I initiated you into the Mile High Club," adding, "That was maybe the best experience I've ever had in my entire life... getting to fulfil the fantasy of all fantasies. The hardest part was, like, keeping quiet so the pilots wouldn't come back."

Pratt concludes, "I feel sorry for couples who aren't as sexually satisfied as we are."