Monica Lewinsky reveals how she first got Bill Clinton's attention

Monica Lewinsky is revealing how she initially got President Bill Clinton's attention before they began their affair.

In the upcoming A&E docuseries, "The Clinton Affair," Lewinsky shares a handful of new details about her time in the White House, and notes that it was her exposed underwear that got the president's attention back in 1995.

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During a birthday party for a White House staffer, where Clinton was present, Lewinsky says she noticed that her underwear was unintentionally showing from behind -- but she decided to leave it be.

"Instead of pulling my trousers up, like I would in any other instance, I didn't," she recalled. "It was unnoticeable to everybody else in the room, but [Clinton] noticed."

"As I passed George Stephanopoulos' office, I kind of looked into the open doorway, and Bill happened to be standing there," she went on. "And he motioned me in -- I don't think my heart had ever beat that fast. Unbeknownst to me, I was on the precipice of the rabbit hole."

Of course, as they say, the rest was history. Lewinsky and Clinton proceeded to engage in a years-long affair, and Lewinsky says that "there were always narratives of secrecy" during their relationship.

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"We were both cautious, but not cautious enough," she added. "I was completely at his mercy."

"The Clinton Affair" premieres on A&E on Sunday at 9 p.m.