Little Bad Dress is the third episode of season six, and forty-eighth episode overall. In this episode, Teresa starts to act like Raquelle when Barbie suggests to give Teresa one of her dresses, and Nikki doesn't even notice it, even how much Nikki hates Raquelle, but Barbie does!
During Raquelle's half-birthday party, Teresa gets her dress stained! Barbie gives her one of Raquelle's dresses, and Teresa begins to start acting like Raquelle, stealing all of the spotlight. Barbie ends up giving her one of her own dresses so that Teresa starts acting like herself again.