Kourtney Kardashian Celebrates 35th Birthday in Her Bikini!

Kourtney Kardashian goes for a run along the beach while showing off her body in a blue bikini on Saturday (April 19) in Los Cabos, Mexico.

The 35-year-old reality star celebrated her birthday the day before wearing a gold bikini while lounging by the pool with her shirtless boyfriend Scott Disick. Also along for the trip, but not pictured here, are the couple’s kids Mason, 4, and Penelope, 21 months.

PHOTOS: Check out the latest pics of Kourtney Kardashian

“Our little sand kingdom. Tinkerbell is asleep inside one castle and she is very lonely so she is waiting for Peter Pan to come kiss her,” Kourtney captioned a photo in Instagram that showed off some sand castles.

15+ pictures inside of Kourtney Kardashian celebrating her birthday in her bikini…