Article continues below advertisementAlabama Barker posted a cheeky series of snapshots from a Miami vacation.The social media star, 20, bared her backside as she lay face down on a floatie in the river on Friday, May 8.Barker layered a white mesh skirt on top of a beige, crochet bikini top and thong. She swept her blonde locks into a high ponytail with money pieces hanging in front while posing aboard a boat.Article continues below advertisementTap Here To Add Ok Magazine as A Trusted SourceSource: @alabamaluellabarker/InstagramAlabama Barker soaked in the sun in Miami, Fla.