Friends favourite Courteney Cox put on an eye-popping display today as she rocked a teeny bikini for some birthday fun and frolics.The mum-of-one turned 56 today, and you wouldn't think it thanks to her eternally youthful looks.Trying to have the most fun one can have when celebrating a birthday in lockdown, Courteney let her hair down, as she jumped into a lavish swimming pool at her home.In the slow-mo video, Courteney gave her best Baywatch impression, as she ran towards the pool, before taking a swift dive in.The Scream actress looked sensational for the upbeat clip, as she rocked a teeny black bikini, which showed off her athletic frame.She left her hair loose and in beachy waves in the clip and went au naturale on the makeup front,.