Cara Delevingne poses nude to promote lipstickLos Angeles, Aug 27 (AZINS) Model-actress Cara Delevingne has posed nude under a blazer for a Yves Saint Laurent campaign, promoting the brand's Rouge Pur Couture lipstick.

Captioning a photograph of Delevingne, the YSL Beauty official photo-sharing website Instagram account wrote: "A colour so bold you'd feel naked without it #YSLrougepurcouture #YSLbeauty (sic)"

And the 23-year-old model says she is a big fan of bold lip shades, reports femalefirst.co.uk.

"I love red or deep purple lips for events," she added.

When asked what makeup look she prefers on her day off, she said: "No makeup. That's my signature."