Venus Williams accidentally confirms sister Serena is having a girl!

The cat is out of the bag!

During an interview on Wednesday, Venus Williams seemed to have accidentally reveal the gender of her sister's baby -- a girl!

"What is the baby going to call you?" the interviewer asked Venus.

"She's going to call me 'favorite aunt,'" the 36-year-old tennis star said. "We're all like, 'Baby V, baby Lyn, baby Isha.' We all want the baby to be named after us."

With Auntie Venus and her own superstar mom, Serena's daughter sure has a lot to live up to!

Serena and her fiancé, Reddit cofounder Alexis Ohanian, are expecting their first child together. The two got engaged in December 2016, and they announced the news on where else?! Reddit!

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Serena Williams' pregnancy Instagrams
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Serena Williams' pregnancy Instagrams
Had the best time at Disney, Pandora was unreal!!#visitpandora
Fun day out and about with @audemarspiguet
Thanks @newyorkpalace for an unforgettable stay. Until next time❤️ #lottenewyorkpalace
Watch: the Diamond outrage by one of my partners @audemarspiguet Dress @donatella_versace @versace_official earrings: @xivkarats overall: LOVE
About date night..
My Dearest Baby, You gave me the strength I didn’t know I had. You taught me the true meaning of serenity and peace. I can't wait to meet you. I can't wait for you to join the players box next year. But most importantly, I am so happy to share being number one in the world with you.... once again today. On @alexisohanian bday. 😉 from the world's oldest number one to the world's youngest number one. -Your Mommy
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And if you recall, Serena also revealed a couple of weeks ago that she accidentally announced her own pregnancy to the world.

"I was on vacation, taking time for myself, and I have this thing where I've been checking my status and taking a picture every week," the soon-to-be mom said. "I've been just saving it, but you know how social media is -- you press the wrong button and ... My phone doesn't ring that much, and thirty minutes later, I'd missed four calls. So I picked it up and realized, 'Oh no.'"

Since then, Serena has been fabulously flaunting her baby bump. She has recently been spotted in Monaco celebrating the impending arrival of her first child, in what has become known in the celeb world as a "babymoon."

And before that, Serena also celebrated her upcoming nuptials in Miami with a "magical" bridal shower weekend with the closest women in her life.

While the tennis superstar hasn't had her baby shower yet, we're sure close pal Beyoncé gave her some tips. Williams was one of the many in attendance at the star-studded event.

Yup, it's safe to say Serena is living her best life right now!

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