Their children became the most talked about duo in the history of the VMAs after a raunchy and unforgettable performance that involved a lot of bumping and grinding.

And proving that it's not just the kids who have all the fun, Miley Cyrus' mom and Robin Thicke's dad posed for a picture last night at Kris Jenner's Christmas Eve bash.

The photograph was posted on the Instagram account of former 'N Sync member Lance Bass with the caption, "Best picture of the night!! MTV VMAs 2033! Mrs. Cyrus and Mr. Thicke."

Though Miley and Robin were nowhere to be seen, the opportunity wasn't wasted on their parents, who thankfully kept it classy – not a twerk or foam finger in sight!

Alan Thicke – better known for his role in ABC show Growing Pains – looked suave in a light grey suit and pink tie, while Tish Cyrus rocked a monochrome pant suit. Her daughter should take a few style lessons from her!

Miley and Robin shocked the world with their almost x-rated performance at the MTV VMAs in August. The former child star romped around the stage in a barely-there nude two-piece, sticking her tongue out and getting very inventive with a foam finger, all before grinding on Robin Thicke while he sang his hit single Blurred Lines.

The moment made the "Wrecking Ball" one of the most talked about celebrities of 2013.