Prince William has left royal fans swooning over his surprisingly muscular frame after rolling up his sleeves for his Covid-19 vaccination.The Duke of Cambridge posted a snap of himself receiving his first dose of the jab at the science Museum on Tuesday, where he wrote: “On Tuesday I received my first dose of the COVID-19 vaccine.To all those working on the vaccine rollout - thank you for everything you’ve done and continue to do.” But it wasn't his health onlookers were celebrating, but the