Kim, 67, posed in nude underwear from the shapewear line Skims, owned by Kim Kardashian.
In a video uploaded on Instagram, she gushed about feeling "freaking fabulous."
Kim had a guest appearance in the Sex and the City spinoff And Just Like That's second season finale.
Due to a dispute with Sarah Jessica Parker, who plays Samantha Jones in the movie Carrie, she stopped portraying the sex siren in 2010.
In 2018, Sarah admitted to being "heartbroken" after Kim said she had never been friends with her co-stars on Watch What Happens Live with Andy Cohen.
Then, in 2019, Kim ruled out the prospect of her ever repeating Samantha's role.
She stated: "I went past the finish line playing Samantha Jones because I loved Sex And The City," in an interview with The Guardian in 2019.
In many respects, it was a blessing, but after the second film, I was done.
"I couldn't comprehend why they wouldn't simply substitute another actress for me rather than waste time harassing me. No means no.