Jennifer Aniston Visits John Mayer's House

Jennifer Aniston walks into on-again boyfriend John Mayer‘s house in Los Angeles late Thursday night (around 9:30 PST).

OK! reports it’s Jen‘s first-ever visit to John‘s bachelor pad. “Since they started dating, they always – ALWAYS – stayed at Jen‘s place,” an insider reveals. “John‘s home is your typical bachelor pad; it’s run-down, overgrown with trees and needs a paint job. There’s probably a moldy tuna fish sandwich and a six-pack of beer in the fridge. That’s not exactly what Jen is used to.”

Jen‘s visit must be extra special tonight since it’s John‘s 31st birthday today! Wink, wink.