If there's one known in fashion, it's that sex sells, so this week, the designers are being challenged to create their sexiest piece. The mentors hit the design studio to talk to their teams about the definition of sexy. John advises his four designers to dig deep and leave their comfort zone. Latina Silvia's automatically thinking red and tight - but she knows Latinas are also conservative, and the woman she designs for can be sexy without showing everything. In Brandon's mind, men want to look powerful. Thus he's designing a James Bond-inspired canvas jacket. John's not feeling the James Bond. When Brandon refuses his advice, John comments that his fabric choice means the jacket won't sell.