Rihanna tweets sultry bikini snap after stepping out all covered up in green dress

That didn't take long! Rihanna is back in her bikini as she tweets sultry snap

Back in the bikini: Rhianna tweeted a picture of herself clad in a skimpy two-piece while holidaying in Barbados

Home sweet home: Yesterday the singer wore a pretty green dress while visiting family over the Christmas break in her native country

A great figure: The singer showed off her tiny waist in the tame number, as she chatted to a little girl on a bike

Different look: Rihanna is more known for her risque outfits, like this one she wore at her concert in London last week