Selena Gomez saddled up and hit the hills for a sunset horseback riding session with her pals Raquelle Stevens ... in the hospital was the tipping point,” the source previously told PEOPLE.

Kourtney Kardashian took her kids Penelope, 9, and Reign, 6, horseback riding while on vacation in Cabo San Lucas, Mexico, as they celebrated Travis Barker's 46th birthday.