Could another baby Phelps be on the way? Michael Phelps confirmed that he and Nicole Johnson are already married, but also hinted at plans to expand their family. During a Facebook Live video the Olympic swimmer teased that baby Boomer could be getting a little brother or sister soon.

“Thank you for the beautiful comment,” Phelps said in the video posted Thursday (via People magazine). “Baby No. 2 may be coming. Who knows, though?” Earlier in Phelps’ video chat with fans, he confirmed a report claiming that he had secretly wed Johnson several months ago.

“I’ve been married for a while. A couple months,” he revealed. “I had to keep it a secret from y’all. I had to keep it hush-hush from you guys. But Nicole and I are married, we are officially married and now we are getting the chance to kind of kick it and hang out now.”

According to People, when a fan asked the 31-year-old athlete why he kept the wedding a secret, he responded: “Just because.” E! News reported Thursday that Phelps and Johnson tied the knot on June 13, ahead of the Rio Olympics, in Paradise Valley, Arizona. The couple obtained their marriage license on June 9, and had Phelps’ friend and agent Peter Carlisle officiate the nuptials.

While it’s not clear how soon Phelps and Johnson will be welcoming another baby to their brood, it’s safe to say that when the pair does have baby No. 2 him or her will also be an Internet star like baby Boomer. Their 5-month-old little boy, born May 5, has over 750,000 Instagram followers.

When talking about his son’s social media presence during an appearance on “The Tonight Show Starring Jimmy Fallon,” Phelps said that it was “insane” Boomer had so many followers. “He’s got to be the most-followed baby in the world who’s 16 weeks,” he said at the time.

Michael Phelps baby number two Michael Phelps teases that he and wife Nicole Johnson could be having another baby soon. Pictured: Phelps at an Omega promotional event in Rio de Janeiro, Brazil, on Aug. 15, 2016. Photo: Getty Images