Cara Delevingne might be saying goodbye to "fashion work" for good, but that doesn't mean her modeling days are completely over. Not yet, at least.

In fact, for her latest ad campaign -- for Yves Saint Laurent's Rouge Pur Couture lipstick -- she's wearing less clothes than ever, stripping down to just a coat of lipstick and a simple pair of black heels for her new digital short movie for YSL Beauty called "Rouge That Dresses Me."

In the racy new vid, Cara sashays into a room in a conservative dress suit, but as she applies her bright red shade, articles of her clothing start to disappear, piece by piece.

Thanks to clever camera angling, the vid remains relatively modest, all things considered, which is probably purposeful, considering what Cara recently said about the skin-centric industry of beauty advertisements.

Last month, Cara told London's The Times that as a feminist it made her "feel sick" to think about some of the more revealing poses she's done in her career as a supermodel -- especially in the earlier years.

The now-23-year-old said, "It’s horrible and it’s disgusting … [These are] young girls. You start when you are really young and you do, you get subjected to … not great stuff."