The girls show off their hot pink nails

Cheryl Cole and Kimberley Walsh got together for a girly nail-painting session last night.

The BFFs both added a coat of hot pink polish to their pinkie fingers in honour of a good cause.

Me and @kimberleywalshofficial painting our pinky’s pink for breast cancer awareness month 💞,’ Cheryl, 30, writes on Instagram.

A snap posted by the singer shows her little finger placed next to best pal Kimberley’s.

Chezza has busy reading Kimba‘s autobiography A Whole Lot Of History, which was published last week, and has enjoyed it as much as Girls Aloud fans.

I’m so happy you all love the book it makes me smile!Strictly Come Dancing star Kimberley Tweeted on Sunday.

You’re clearly all speed readers like @NicolaRoberts and @CherylCole #bookworms.’

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Anna Francis