Holly Willoughby shared a rare photo of her "beautifully brilliant" lookalike sister Kelly in a cute heartfelt birthday post on social media.The This Morning star has a close bond with her older sister and the photo reminded fans and followers just how alike the pair look.Both siblings were pictured grinning ear to ear in the gorgeous snap with some fruity looking cocktails on the go.40-year-old Holly unveiled the photo to her 7.1 million Instagram followers on Saturday and cheekily referred to her sister as her "wing woman," reports The Mirror.In the post Holly wrote: "Happy birthday to my beautifully brilliant wing woman...."I love you @ladywilloughby be lost without you...
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