Article continues below advertisementJanuary Jones, 47, took advantage of the summer sun by posing in an adorable two-piece bikini from JUILLET. The Mad Men actress leaned on a patio chair as she arched her back to emphasize the curves of her body for the cutesy photo. Jones accessorized with a chic pair of white sunglasses and a bright smile."Only cause it's a heat wave," she captioned her Instagram post from Saturday, August 23.Article continues below advertisementJanuary Jones' Thirst TrapSource: @januaryjones/InstagramJanuary Jones is 47 years old.