Katy Perry risks a wardrobe malfunction as she steps out in a microscopic miniskirt for Saint Tropez lunch date with Orlando Bloom

Katy Perry risked a wardrobe malfunction on Monday as she joined fiancé Orlando Bloom for a lunch date in Saint-Tropez.

The American singer wore a halter-neck crop-top and a matching miniskirt that rode up her thighs as they made their way to popular local restaurant Club 55.

A lilac bikini was visible beneath her co-ord as she made her way into the venue with Bloom and a small entourage of friends.

With summer temperatures soaring across the Mediterranean, Perry, 39, added to her look with a wide-brimmed beach hat, while heavily tinted sunglasses rounded things off.

Joining the singer, Bloom, 47, wore blue nylon shorts and a matching top as they made their latest appearance in the south-of-France.