1x11 - Ai Yori Aoshi

The photo club puts on a show with Tina and Taeko wearing outfits to draw attention. To this event comes Mayu -- a girl who's been living in England and has returned to go to this college at 16. Seeing Kaoru, her mood improves and she flings herself at him and kisses him on the lips. Tina and Taeko are stunned by this.