Jennifer Aniston and John Mayer found a quieter way to hook-up this weekend as they both attended the first birthday party for Sacha Baron Cohen and Isla Fisher’s daughter, Olive. Last week Jen was forced to asked local police officers for help as she headed over to Mayer the Players house for a booty call.

Jen, who made birthday headlines earlier this week when she celebrated on-off-on beau John Mayer’s 31st, arrived at Isla’s Hollywood Hills home hiding on the floor of the backseat of BFF Courtney Cox and David Arquette’s car.

Oddly, Baby Olive sure does have a lot of famous grown-up friends. Other party guest were Dustin Hoffman, Ben Stiller, Ellen DeGeneres and Portia, Jack Black, Tobey Maquire, Kate Beckinsale and Jonah Hill. They must do things different in L.A. Where I come from the party is usually about the kid, not the parents Hollywood connections. But whatever, party on Borat!