Lauren Conrad recently celebrated her last day of filming for her MTV reality show, The Hills, to which she will not be returning.

But the folks behind the show wanted to make sure they had enough material of her going forward, so they got creative, according to Gatecrasher.

“The producers would make Lauren react to a lot of potential scenarios, because they’re not yet sure how the finale will play out with the other characters,” says a source.

“They would literally give her directions like, ‘Now react to Stephanie Pratt being pregnant!’ Lauren would just giggle and go for it. She also had to pretend to react to a fake story line about Audrina and Brody hooking up.”