Supermodel Heidi Klum revealed the secret behind her most recent sexy photos on Instagram. Apparently, her mother was the photographer!

If you haven't missed the recent pictures German supermodel Heidi Klum shared on Instagram, you may be surprised to know that the secret photographer was none other than her mom. Since Klum joined the online photo sharing service earlier this month, she has updated her profile with some jaw-dropping pictures, including the topless one in Bora Bora, the one where she flashed her tanned butt and the one revealing her toned stomach and underboob.

In a recent interview with Access Hollywood in New York Tuesday, the "America's Got Talent" judge revealed that most of her racy shots were taken by her mom, Erna Klum, while on vacation.

"You will be surprised when you hear that my mom takes most of the photos," she told Access Hollywood. "Yeah, my mom and dad. They were on holiday. Yes, so my mom can take some good photos."

She also said that her body baring guts comes from her European heritage. "I'm European. I don't like wearing tops," Heidi said. "And I don't like tan lines."

In another interview with Extra on Tuesday, the "Project Runway" host gave a similar statement, when asked about her sexy Instagram photos. Speaking about the topless picture in Bora Bora hugging a palm tree, Klum credited her mom for the shot.

"I took the same photo of my mom, but she was wearing a bathing suit," she told Extra magazine. "I grew up, you know, running around topless. And I still do," she said with a smile.

Klum's recent posters for the latest season of "Project Runway," which featured naked male and female models, was banned from LA Billboards, but was approved after the models were dressed in underwear.