PHOTO GALLERY: Kristin Cavallari Films ‘The Hills’

Kristin Cavallari. In a swimsuit. You’re welcome.

The Hills beauty was in Malibu on Friday, filming an episode of the hit reality series while frolicking in the sand with a bikini-clad gal-pal.

It’s grueling work, but somebody has to do it.

Click through our photo gallery and soak up the glory of it all.