Looks like frenemies Lauren Conrad and Heidi Montag are pals again! According to Us Weekly, The Hills starlets made up at STK last night. Lauren was there to celebrate her fashion show, while Heidi and Spencer were there for a photo op romantic dinner.

It was Heidi who approached her former nemesis, and she reportedly asked if she could congratulate Lauren on her fashion show. The two girls chatted for a few minutes, and were even seen hugging afterwards! A source added that the two "seemed happy to be talking." Lauren told the magazine, "Yes, it's true. Heidi was at STK. She came in to the after party to congratulate me on the show. It was nice of her. I appreciated it."

Hmm, think Lauren is replacing Audrina? Or is this just for show?