Article continues below advertisementSofía Vergara sizzled in a sultry new video.The Modern Family star, 53, posed in a plunging floral frock in a clip posted on Monday, July 28.Article continues below advertisementSource: @sofiavergara/InstagramSofía Vergara stunned in a low-cut frock.The TV star stunned in a cleavage-baring halter dress while snacking on gelato during a carriage ride. She paired the busty ensemble with strappy nude heels as she took in local sights with her friend Chi.Vergara celebrated Chi's birthday with a scenic afternoon party on Monday.