 According to Danish film historian Morten Piil, it was Viby's next role which established her most noted persona—the energetic, witty woman who acts as she necessary to maneuver in a man's world.In the 1932 George Schnéevoigt film "Tretten År" ("13 Years"), Viby was an office girl who plays a thirteen-year-old Lolita to avoid men's advances.Piil wrote that it was only Viby's "fundamental cheerful innocence which saved this erotic farce..."

Viby made her next nine films under the direction of her second husband, Emanuel Gregers.