Family Guy S07 E13 Stew-Roids

"Don't die laughing. We could get sued."

Stewie starts going to the gym with Peter after he gets beaten up by Joe's baby daughter Susie, but just when it seems that his hard work is paying off, Peter reveals that he's been giving him anabolic steroid. Meanwhile, Chris begins dating a popular girl at school, only to see her popularity subside.