Kaley Cuoco is currently in the midst of several celebrations, coming off of an eventful Thanksgiving weekend, and is now partaking in another special one.MORE: Kaley Cuoco 'cries' over incredible new bar at mammoth home ranchThe actress shared that November 29 is her sister Briana Cuoco's birthday and she took the opportunity to pay a heartfelt tribute to her.She posted a throwback photograph of the two with their mother Layne Ann, with the two of them looking practically unrecognizable.WATCH: Kaley Cuoco debuts incredible birthday presentAs children, the two looked adorable, with Kaley lightly cooing in her mother's arms sporting a blonde bob, while her sister above her gave a wide smile.MORE: Kaley Cuoco celebrates beautiful wedding in.
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