T.M.I. alert!

In September's Playboy, Heidi Pratt credits husband Spencer for helping her enjoy sex.

"You know, I was never very sexual before I met you, Spencer," she tells Spencer, who interviews her for the issue. "I knew what sex was, but when I met you I entered into a whole new realm of understanding, from fantasy to love. Or to experience a day with 20 or 30 orgasms. Before you, sex was just something that happened. Now it's something I look forward to every minute of the day."

See photos of Heidi Pratt and other stars who've had embarrassing wardrobe malfunctions

The oddest place they've done it?

This past New Year's Eve on a private plane.

Heidi calls it "the best experience I've ever had in my entire life."

See Heidi Pratt and other sexy summer bikini bodies

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

But Heidi says she'll never film their conquests (incidentally, Spencer claims once again that a Lauren Conrad sex tape "exists," despite previous denials).

See photos from Heidi and Spencer's wedding

Says Heidi, "I've never watched porn in my life. I'm not going to start making it."

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