When the boys get tested for STDs, Artie tests positive for a disease and he's forced to tell his sexual partners. Meanwhile, Kurt and Blaine have relationship issues when Blaine puts on his "freshman fifteen".

Rachel jeopardizes her "Funny Girl" lead when she auditions for a television pilot. Meanwhile, Mercedes tries to help get Santana in on her recording deal, and Blaine befriends an older, rich socialite.