LAS VEGAS, April 20 (UPI) -- Kourtney Kardashian celebrated her birthday over the weekend.
The reality star turned 36 years old Saturday, and rang in the milestone with longtime partner Scott Disick in Las Vegas. The couple shared photos from the fête on Instagram, including a picture of themselves holding cardboard cutouts of each other's faces.
"About last night," Kardashian captioned snapshots of herself partying at 1 OAK nightclub before adding, "What happens in Vegas stays in Vegas," to a photo of herself pumping breast milk.
Kardashian celebrated again the next day with half-sister Kendall Jenner and children Mason and Penelope. She and Disick have been an on-and-off couple since 2006, and welcomed their third child, son Reign Aston Disick, in December 2014.
Kardashian and her family recently returned for a 10th season of E! reality series Keeping Up with the Kardashians, which airs new episodes Sundays at 9 p.m. ET.