Kylie Jenner Shows Off Post-Baby Body at Tristan Thompson's Birthday Party: Photos

New mommy Kylie Jenner showed off her slender frame on Saturday, March 10, just over a month after giving birth to her first child, Stormi West.

The Lip Kit founder, wearing a black crop-top sweater with lace-up pants, shared a sexy picture of herself with best friend Jordyn Woods that highlighted her tiny tummy. She captioned it, “Back at it again.”

The pals later attended Tristan Thompson’s 27th birthday bash, which included an A-list roster of partygoers including LeBron James and the Life of Kylie star’s sisters, Kendall Jenner, Kourtney Kardashian and her boyfriend, Younes Bendjima, and Thompson’s pregnant girlfriend, Khloé Kardashian. Momager Kris Jennerand Thompson’s mother, Andrea Thompson, were also in attendance.

The party for the Cleveland Cavaliers baller, whose birthday is on March 13, was held at Beauty & Essex in Los Angeles. Kardashian shared clips while inside the party that showed guests dancing in front of a lit-up sign spelling out Thompson’s name. Earlier in the day, the Strong Looks Better Naked author was honored at a chic pink-themed baby shower to celebrate the couple’s first child together, a baby girl, who is due next month.

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