Serena Williams is already a champion swaddler!
The tennis pro took to Snapchat on Saturday to document and her and her fiance Alexis Ohanian's "Baby Class 101."
The expecting parents learned all about swaddling in their class -- and it seems Williams is a natural.
"Good swaddling, Serena! Yes!" she cheered herself on in one Snapchat, before turning to Ohanian. "Look at this student. Oh, what happened?"
"I can't help it!" a flustered Ohanian replied as his doll lay poorly wrapped in its blanket, before lifting the doll up like a football.
"Sir, that is not how you carry the baby," Williams joked.
Ohanian knew that Williams was ready for parenthood long before their swaddling class. During an appearance on CNBC's Squawk Box earlier this month, the Reddit co-founder couldn't help but gush about his wife-to-be.
"She's awesome at a lot of things, and she's well on her way to being an awesome mom," he said, before revealing that he'll be taking paternity leave when their baby is born. "I'll be taking off for six weeks myself and trying to do the best job possible as a first-time dad."
See more in the video below.