Lily Allen has admitted that she turned down a part on the HBO series 'Game of Thrones'.

During a 'Ask Me Anything' Reddit session, the 29-year-old singer revealed that she was offered to play the sister of the character 'Theon Greyjoy' in the series, which is played by her real life brother Alfie Allen, News.com.au reported.

Allen added she felt uncomfortable to play the character because it involved her brother "touching her up and s***", while she was on a horse.