Madonna exposed

Rap legend Tupac Shakur poured his heart out to Madonna in the 1995 letter at the center of a salacious lawsuit — but the pop goddess may never have even opened it, according to a recent deposition.

“I don’t know,” Madonna waffles, when asked if it’s possible that, by 2010, the letter was still sealed — and in the possession of the ex-assistant who handled her “fan mail,” according to a transcript of the deposition obtained exclusively by The Post.

“You would have to ask her,” Madonna snaps when asked whether the former aide, Darlene Lutz, would be lying if she said Tupac’s letter, sent less than a year before his murder, lay unopened for years.

Lutz has been trying to auction the letter and other personal Madonna memorabilia, including some panties and a brush with the singer’s hair, via Gotta Have It! Collectibles. But the Material Girl is suing to stop the items from going under the gavel, saying the ex-assis- tant has no right to peddle her personal things.

Madonna concedes in the deposition that she got naked for her best-selling “Sex” book — but claims the panties and hairbrush are just too intimate and personal to be sold.

“Well, it is my hair,” she tells Lutz’s lawyer, Judd Grossman.

“It’s creepy,” she explains, according to the deposition, which was conducted in a Times Square office in August.

“If I publish a book, that is my offering to the world, I acknowledge that,” she says. “I’m giving that piece of art to the world.

“There’s a difference between that, what I offer to the world as an artist, and what people write to me personally and privately as a human being,” she says.

“There’s nothing in the ‘Sex’ book that had anything to do with my private life.

Lutz’s lawyer presses Madonna, “But you were in the photos.”

She responds, “Yes, playing a character.”

“You gave your assistants discretion on what to do with the mail after they open it?” asks the auctioneer’s lawyer, Jeffrey Haas.

“For the most part, yes,” Madonna says, an answer that may come back to haunt her as a judge or jury decide whether the letter is Lutz’s to sell.