Newly Single Kardashian Sister Bares Her Belly [PHOTOS]

Kourtney Kardashian is the oldest of the three Kardashian sisters, and she has been spotted showing some skin ever since she broke it off with her longtime boyfriend and the father of her three kids.

The 36-year-old wore a black belly-baring jumpsuit to Kylie Jenner’s 18th birthday party in Hollywood Sunday night.

The nude paneling showed almost every inch of her tummy.

Kourtney dated Scott Disick for nine years before finally breaking it off this summer after photos of Disick and his ex-girlfriend hanging out in Monte Carlo surfaced. (RELATED: With The World In Mourning, How Did The Kardashians Spend Their Wednesday?)