The socialite has been in the capital to promote her new reality show 'My British Best Friend', for which she was auditioning various girls
Sienna Miller's 15 Seconds of Nipple Time
Sienna is the latest to have jumped onto the tittie bandwagon. Ever since Janet's nipple made a special appearance it seems that everyone wants a piece of the pie...a.k.a. their 15 seconds of nipple stardom. British actress, Sienna Miller shows hers proudly in an electric blue 'why even wear a top' top.