The Modern Family babe was popping out to the shops when she was snapped showing off a bit of side boob. "I felt the need to point out that I am carrying a milk filled oil can cup I got from Cars Land," she captioned the pic on Instagram.
The Modern Family star took to Instagram to wish her 2.7 million followers a Merry Christmas with this racy snap.
The 18-year-old sported a blonde wig and a red sequined outfit for the pic, captioned: "Santa baby."
She also tagged Hollywood lingerie brand Trashy Lingerie in the post which has gained 99,000 likes and counting.
But while Ariel's saucy Santa pic is pretty racy, we've seen her wearing more revealing outfits over the years. Keep scrolling...