She loved them!
So much so that she reposted the sexy photo on her own Instagram page.
In the image, Simpson, 18, and Hadid, 19, are completely naked except for a towel they're sharing, which is strategically wrapped around their privates. The two are so close to one another they are practically hugging. Hadid also has a towel in her hair, because why not?
"This was not necessary," one commenter criticized Foster. "I wouldn't want to see my daughter and her boyfriend like that!!"
"This makes me uncomfortable," another posted wrote.
Others were more supportive, with comments like "Absolutely gorgeous" and "Young model love :) So handsome."
As for Foster, she kept her caption sweet and simple with a heart and this description: "'Towel Series' by the extraordinary @MarioTestino @gigihadid @codysimpson #TowelSeries #MarioTestino."
Simpson and Hadid's image is the 69th photographer Mario Testino has captured for the series. Other celebrities who have participated include Ansel Elgort, Lily Aldridge, Sienna Miller, Miley Cyrus and Keira Knightley.
Hadid also shared the photo on her Instagram with the caption, "TOWEL SERIES BY MARIO TESTINO x @codysimpson First couple #TowelSeries!! We love you @mariotestino, thank you!!"
Hadid and Simpson have been dating on and off for about two years. They were most recently spotted together soaking up some sun in Miami last week during the Victoria's Secret Spring Break bash.
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