We know, we know, what's next? Mary-Kate Olsen stating she's not, like, fat?

Here's how this Paris Hilton revelation came about:

In police investigations related to a robbery of "Girls Gone Wild" producer Joe Francis, the lodging heiress says she's not an entirely reliable witness, but reveals that "private tapes" were taken from her home and that mystery callers have been trying to get her to pay up for them.

Some mystery. Yes, Nicole Richie, we're looking at you.

Hilton admitted to possessing some knowledge of what happened to Francis' house in 2004 (though nothing self-implicating) and Los Angeles Police Department detectives are heard trying to extract it from her in the tapes, which will air on Friday night on "Dateline NBC."

According to Page Six, the annoyed air head says, when interrogated:

"Like I really ... I don't remember. I'm not like that smart. I like forget stuff all the time."

Hilton did admit that she refused to give it to blackmailers that have threatned to release the aforementioned personal sex tapes. We don't know why. That's the only reason she got famous in the first place.

We're not, like, kidding.