She is being billed as the next Gemma Ward, but 15-year-old Adelaide schoolgirl Vanessa Milde is so thin her tights slid down during the final day of Melbourne Fashion Week.

International model agency IMG signed Milde after an Adelaide-based agency was stunned by her "sheer beauty".

But at the New Generation show at St Kilda Baths, Milde drew gasps as the tights used by designer DavisEyes slid down, too big for her slim thighs.

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