During her time working in her father's White House, Ivanka Trump was obsessively adamant about denying an obscure story about how she and some friends allegedly "flashed" a hot dog vendor when they were teens.

The story involves a "rumor that as a teenager attending Manhattan's elite Chapin School, she and some friends had flashed a sidewalk hot dog vendor from the window of their classroom," former White House press secretary Stephanie Grisham writes in her new book, "I'll Take Your Questions Now."

SheKnows.com reports that after first appearing in Emily Jane Fox's 2018 book "Born Trump: Inside America's First Family," the story "seemingly gained media traction, much to the chagrin of Ivanka."

According to a 2018 report from the Daily Mail, Ivanka bared her breasts in the incident, which occurred when she was in eighth grade.

In her new tell-all book, Grisham reveals that Ivanka insisted that she and others from the White House press office work to squash the hot dog vendor story.

"Responding to something like that would only amplify its importance and give more oxygen to the story. But Ivanka didn't see it that way," Grisham writes.

According to Grisham, it's just one example of how Ivanka Trump expected the press office "to siphon off some of its resources to defend and support her."

"She obviously had a Google alert set for her name and would go to Sean Spicer whenever a story about her popped up that she didn't like, which was most of them, expecting us to push back," Grisham writes. "That happened even if 90 percent of a story was positive. She would focus on obscure small facts that she didn't like or claimed weren't true. ... Image was everything in the Trump family, and Ivanka worked very hard to convey an image of perfection."

In other news Wednesday, a team of cold case investigators believe they have identified the notorious Zodiac Killer -- and linked him to other murders. WATCH:

Zodiac killer identified by cold case team and linked to another murder youtu.be