Brody Jenner Celebrates 25th Birthday with "Hills" Cast

Brody Jenner, one of the main men on The Hills, celebrated his 25th birthday in Cabo San Lucas over the weekend. And guess what?

Many of his castmates were there along with him to celebrate the quarter-century mark.

With Jenner was Lauren Conrad and Audrina Patridge, who joined Jenner's pals Frankie Delgado and Doug Reinhardt, who was dating Conrad. "Was" being the key word, given the previews that MTV is showing that makes it appear that Reinhardt and Conrad split, opening the door for Conrad and Jenner to rekindle their relationship.

But it appears that Reinhardt and Jenner are still best friends, and that LC didn't get in the way.

But yeah, back to the party.

It reportedly lasted deep into the night both in and out of the resort's pool.

"They went bananas," a source told E! News. "They partied until about 3 a.m.-cocktails, birthday cake, in and out of the pool."

The following day was made up of tanning and surfing, and then the "stars," if that's how we're referring to Jenner, Conrad and Patridge these days, returned to the downtown portion of Cabo San Lucas, for the first section of the party with the town's locals.

Following this, they headed back to the resort and partied some more.

"Friday night was crazier-they were up until 8 a.m., beer and margaritas all night."

Look for the party on The Hills either this season or next.