Blushing belle: Sarah Harding sizzles in her hot pink lingerie in the new Ultimo ads

Sarah Harding and Gemma Atkinson today unveiled their latest lingerie campaign just in time for Valentine's Day.

The Girls Aloud singer, 26,reality star, 23, flash their figures in a series of underwear poses in the latest campaign for Ultimo.

A week before February 14th, Ultimo's latest collection features Gemma and Sarah dressed in a series of bra and knicker combinations.

Sizzling: Gemma Atkinson shows off the tan she acquired in the jungle in I'm A Celebrity

Scottish firm Ultimo flew their celebrity models to the warmer climes of Miami, Florida for the photo shoot last month to make sure they didn't get too chilly in their briefs.

Ex-Hollyoaks actress Gemma, who is planning to launch a pop career following her appearance on Soapstar Superstar, was unveiled as the face of Ultimo's D-G range in November.

Gemma wowed viewers of I'm A Celebrity two months ago with her svelte size 4 figure and her surgically-enhanced 34E breasts in a series of skimpy bikinis.