Lazzarini's Sister - S1.E26

Lazzarini's younger sister Niki arrives in Paris from New York and brother Bobby is happy to see her. The girls try to be friendly by taking her shopping and giving her a makeover which turns the tomboyish girl in to quite an attractive young woman. But Bobby can't handle the fact that his sister is not the same little girl he knew before, and when she starts showing a romantic interest in Jackson, Lazz goes ballistic. Meanwhile, Ms. Dupre admires the hunky P.E. teacher Mr. Jergens for running in a charity race, so the decidedly less-athletic Mr. Elliot enlists the aid of Christian to help him train for the same race.