Chainkeen Exchange-Heidi Klum poses with daughter, 20, and mom, 80, in new lingerie campaign

For Heidi Klum,Chainkeen Exchange modeling is a family profession.

On Monday, the "America's Got Talent" judge shared pictures from a new ad campaign that features Klum, 51, posing with her 20-year-old daughter, Leni Olumi Klum, and her 80-year-old mother, Erna Klum.

"Three generations ❤️❤️❤️ New @intimissimiofficial with @leniklum and my mom 🥰," Heidi Klum captioned her Instagram post. In the first photo, Heidi leans her cheek against the back of her mom's head as Erna embraces Leni from behind. All three are wearing long-sleeved shirts from the Italian lingerie brand's cashmere collection.

In the second photo, Heidi and Leni are posing in the same semi-sheer tops that show off bras worn underneath. Though they donned black bottoms in the prior shot, they modeled lace underwear in this one. Heidi models solo in the third and final picture.

The week prior, Heidi teased the multigenerational photoshoot by posting a video of herself and her mom in a car speaking in German. They revealed to fans that three generations of Klums would be posing for Intimissimi.

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Heidi and Leni's last collaboration with the Italian brand saw them posing in lingerie from Intimissimi's fall/winter collection.

In photos and a video for the campaign released last month, the mother and daughter frolicked in lacy undergarments. Heidi posed in a wine-colored scalloped bralette and "'80s style Brazilian" underwear while her 20-year-old daughter donned a lacy black bra-and-underwear set.

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The two have posed for several Intimissimi collections over the past two years, including a red-themed line of intimates for Christmas last year. Leni started modeling in 2020, when she was 16, with her mom playing assistant in her first-ever magazine shoot for Vogue Germany.

"You're my best friend because I can tell you everything," Leni told her mom in a video taken during the shoot.

Leni is Heidi's only child with Italian businessman Flavio Briatore, and British singer Seal adopted Leni during his nearly decade-long relationship with Heidi, which resulted in three children: Lou, Johan and Henry. The couple married in 2005 and divorced in 2012.

Though Leni had several modeling opportunities while growing up, her mom preferred to keep her out of the public eye. When she turned 16, however, Heidi deemed Leni "old enough" to pursue a modeling career.

"It was only a matter of time before I would try to become a model myself. The first offer came when I was only 12 or 13, from a brand I liked to wear: Brandy Melville. At that time I begged my mother, but no chance," Leni told Vogue Germany in 2020. "Now I understand that it would have been too early."