Heidi Klum and daughter Leni pose in lingerie for controversial campaign

Heidi Klum and her 18-year-old daughter Leni have appeared together in a lingerie campaign that aims to "celebrate women."

The mother-daughter model duo looked natural as they posed together for the Italian lingerie brand, Intimissimi.

"A story of self-confidence, joy of life and love between a mother and a daughter. Together @heidiklum and @leniklum celebrate The Art of Italian Lingerie," Intimissimi wrote alongside the campaign on Instagram.

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In the advertisement, Heidi and Leni are seen laughing together and playfully posing for the camera in matching lacey lingerie sets designed by the brand.

"Together with @intimissimiofficial we celebrate women; the love and support between a mother and her daughter; and how confident, beautiful and happy lingerie can make you feel," Klum wrote of the partnership, on Instagram.

In her own post, Leni wrote, "You will love their Lingerie as much as we do!"

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The campaign garnered plenty of internet attention, some of which was negative.

"I like to think I'm progressive [with] these things but [a] mom and daughter in lingerie in the same video shoot is just a bit ick," one user wrote.

Another added, "Weird in many ways."

This is not the first time Heidi and Leni, whom the former Victoria's Secret model shares with ex-husband Seal, have modelled alongside one another, having previously graced the cover of Vogue Germany's January/February 2021 issue.

"So excited for my first cover!! I had so much fun on set with @voguegermany couldn't dream of a better start!! Thank you for being by my side @heidiklum ❤," Leni wrote on Instagram at the time.

The pair share an incredibly close bond; in August, Heidi shared a heartfelt tribute to Leni as she left home to attend college.

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"Today is your big move to head off to college…Seems like only yesterday that this photo was taken when I was four months pregnant with you safe and sound in my belly. 🤰🏼," Heidi wrote.

She concluded with encouraging words: "Sometimes I wish I could always have you that close but I know it's now time for you to go spread your wings and fly. Take flight, be safe and shine bright my @leniklum."