Kylie Jenner rents out entire theme park for Travis Scott's birthday

Those Kardashian-Jenners sure know how to throw a party. For her boyfriend Travis Scott's birthday bash, Kylie Jenner didn't just buy him a cake -- she went all out and rented an entire theme park!

To celebrate the rapper's 26th birthday, the couple and their squad hit up Six Flags Magic Mountain outside of LA on Saturday, which was apparently the first time Scott had visited the famed amusement centre.

"Rented out Six Flags for baby's birthday. They've never been," Jenner, 20, wrote in Instagram Stories.

Technically, Scott visited a similar theme park called Astroworld in his hometown of Houston, but that has since closed. So Jenner made sure to deck out Six Flags as if it were Astroworld, which also happens to be the title of Scott's new album.

Of course, all the guests' outfits were on point. Jenner had black and white hoodies custom made with Scott's birth date and state printed on the back, which her sister, Kourtney Kardashian, 39, happily modelled on Instagram Stories.

The cake was pimped out, too. A rollercoaster creation featuring Jenner, Scott and their baby daughter, Stormi, on the ride, was so OTT -- momager Kris Jenner would definitely give her stamp of approval.

"I told them, 'Make sure Stormi has a seatbelt!'" Jenner joked on Instagram.