Alexis Jr., most commonly referred to by her middle name, Olympia, is Williams and Ohanian’s first child together. She was born on Sept. 1, 2017, and quickly became the center of both Williams and Ohanian’s lives. In fact, Williams previously told POPSUGAR that she plans on never leaving her daughter’s side for even a day if she can help it.

«Yeah, absolutely, I feel great [about spending time away from her]. I feel like when she’s 18, at college, it’ll be hard for me, but I’ll manage. Hopefully, she’ll have a brother or a sister and they’ll still be around.» She added, laughing: «I’m so serious.»

Turns out, Williams wasn’t joking at all because Olympia does have a sibling on the way. On May 1, Ohanian shared photos of his and Williams’s 2023 Met Gala looks on Instagram and captioned them, «Mama (@serenawilliams) & Papa love this parenting-thing, so we’re back at it 😁 and @olympiaohanian is gonna be the best Big Sister—she’s been asking & praying for this for a minute.»