VIDEO : Pippa Middleton's Future Brother-in-Law Strips Shows Off Body in London

Shield your eyes, Queen Elizabeth II! Pippa Middleton's future brother-in-law Spencer Matthews surely raised quite a few royal eyebrows when he stepped out in nothing but a pair of nude skivvies in London on Friday. The reality star, whose older brother James Matthews is Pippa's husband-to-be, posed nearly-nude in a store window for a promotional event kicking of London Fashion Week. Matthews, 27, is known across the pond for starring in the U.K.