While out and about over the weekend, troubled pop star Britney Spears and her BFF Sam Lutfi popped into a Ventura Blvd. gas station, and aside from picking up their usual booty of sports drinks, snacks and cigarettes, Brit-Brit also perused a copy of the latest issue of OK!, which features her 2-year-old son Sean Preston on the cover and an in-depth exploration of her bizarre behavior inside.

"You can’t watch Britney act the way she does and not be afraid that her kids have inherited her ‘crazy gene,’" a friend of the singer explains in the current issue. The article also details the recent phenomenon of Brit appearing to switch from one personality to the next.