A model has filmed herself twerking on a burning Barcelona street as a 'form of expressing [her] protest' during the Catalan independence riots. Sandra Kisterna, who boasts a 12.2k Instagram following and shows 'Twerk Classes' on her social media, has gone viral with 370k views of her routine. In the bizarre video, scantily-dressed Kisterna wiggles her bum on the burning street. She shakes her body around and moves her arms ...