Cameron Diaz has upgraded her relationship with Paul Sculfor to serious. OK! says the actress and her model boyfriend, who began dating publicly in June, are now living together at Cam's home in the Hollywood hills. An insider tells the magazine, "They've settled into a comfortable routine. She drops him off at the gym."

Since Cam is known for loving the single life, it's a bit of a surprise to see her sharing a home with Paul after a few months! Do you think she's moving too fast with, or just trusting her instincts?