VIDEO : Ariel Winter Shows Off Some Serious Underboob at Her Graduation Party

After graduating from high school last week, Ariel Winter celebrated her huge achievement with a party. The Modern Family star shared a photo on Instagram on Sunday flaunting some serious underboob. Standing in front of a graduation-themed cake, she wore a skin-tight pink dress that left nothing to the imagination. The 18-year-old confirmed in April that she will be attending UCLA in the fall.