Miley Cyrus Motorboats Amazon Ashley Onstage 'Cause What's A Little Face-To-Chest Action Between Friends?

Miley Cyrus

Miley Cyrus takes a breather in Amazon Ashley's chest because that's what BFFs are for. 

In many cultures, you greet an acquaintance with a handshake or perhaps a kiss on both cheeks. In Miley Cyrus' world, you smash your face into your BFF's bosom for a friendly howdy-do -- i.e., "motorboating." (Something tells us that a "hand" shake from Miley might've actually been even more PG-13 than this...)

The "Adore You" singer tweeted a photo of herself motorboating away to her little heart's content during a recent "Bangerz Tour" stop in Rosemont, IL. Can you guess who the lucky recipient was? Why, only the world's tallest burlesque dancer, Amazon Ashley!

Judging by the 6-foot, 7-inch-tall Ashley's face, the unusual greeting doesn't phase her one bit. Then again, these two have been working twerking together onstage since Miley's 2013 VMA performance.

But #protip: Just because these two "coworkers" share this particular style of office rapport, doesn't mean that you should attempt to try this at your own workplace -- or home or school. The odds that the person you choose to "greet" this way will be all "OMG YEAH HIGH-FIVES ARE LAME" instead of "WTF?!" are pretty slim.

Photo credit: @MileyCyrus