With the French Open just a month away, Serena Williams seemingly has some down time.

The tennis great used some of it Tuesday, jumping on her Snapchat and, well... snapping it back in an impromptu twerking lesson.

"Twerking is a very popular dance right now," she says like a fitness instructor would in a workout video. "Here's how you twerk."

The schooling session transitions from Serena twerking alone to her showing middle-aged men how to throw it back as well.

Hilarious!

Moments later, Serena is Milly Rocking, showing them how to do the dance out of Brooklyn as well.

Needless to say, the guys she's teaching are hopeless.

Now, this is a Snapchat story!

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(Photo: Matthew Stockman/Getty Images)