You will Watch Family Guy Season 14 Episode 6 online for free episodes with HQ / high quality. Stream cartoons Family Guy S14E06 Peter’s Sister. Peter’s sister, Karen, decides to come for Thanksgiving and bullies Peter the same way he treats Meg. While Meg is at first amused, she later feels bad and decides to help Peter train to defeat his sister in a wrestling match. Meanwhile, to avoid overeating on Thanksgiving, Stewie and Brian decide to go on a cleanse, which Stewie takes one step too far.