Survivor: Marquesas's buxom castoff Sarah Jones wants to get something off her chest concerning the authenticity of her breasts: They are most definitely hers — and she has the receipt to prove it!

The 23-year-old cocktail waitress can thank fellow contestant Vecepia Towery for leaking news of her boob job to the masses: In the first episode, Towery cracked: "Sarah has a very cute body. She paid a lot for it."

Towery's sound bite was reprinted everywhere — including in TV Guide magazine. "The part that everybody left out was when she then said, 'Well, if you've got it, flaunt it,'" Jones groans to TV Guide Online, before adding, "I took her comment as a compliment. I didn't take it as derogatory."

So, how did Towery uncover Jones's not-so-little secret — aside from, um, taking a lucky guess? "She had asked me earlier if my boobs were real and I said no," Jones admits. "So, that's where she came up with that."

Although the diva-in-training insists she didn't get her bosom enhanced in preparation for her TV debut — "No, it's been years," she says — there's no denying that they helped distinguish her from the pack. In fact, her double features may even land her in the pages of Playboy — Jones confirms that a possible spread is being discussed. "There's obviously more to be talked about," she says. "But for the right amount of money, I would definitely do it." (A Playboy rep denies that the mag is in talks with Jones.)

That begs the question: What is the right amount of money? "I haven't even thought about it," she says. "I don't know what the going rate is."