Celebrity Parents Surf Legend Kelly Slater, Girlfriend Kalani Miller Expecting First Baby Together The couple has been together for 16 years By Charna Flam Charna Flam Charna Flam is a writer-reporter at PEOPLE. She has been working at PEOPLE since 2023. Her work has previously appeared on Variety, The New York Post, and The Wrap. People Editorial Guidelines Published on March 20, 2024 01:19AM EDT Close Kelly Slater and Kalani Miller on August 29, 2015 in Malibu, California. Photo: Stefanie Keenan/Getty Surf legend Kelly Slater and his longtime girlfriend, Kalani Miller, are going to be parents! Slater, 52, and Miller, 36, announced the news in a collaborated Instagram Reel on Tuesday. In the black-and-white video, the pair, who have been romantically involved for 16 years, are seen in their swimsuits holding hands as they walk toward the ocean. Once in the water, the two lovingly embrace one another as the waves crash at their feet. Miller’s growing baby bump is filmed in a close-up shot in which the waves lightly crash into her exposed belly. The post was accompanied by Ben Harper’s “The Three Of Us.” Miller simply captioned the post, “🤍.” Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. Several surfers shared in the celebrations. “That baby is going to shred. Congratulations!!,” wrote Ben Thomson. “Massive congratulations,” commented Mick Fanning. Filipe Toledo added, “😍 God bless ! Happy for you guys.” “🙌❤,” wrote Kai Lenny. Meanwhile, Nathan Florence added, “Congrats!!!” Kelly Slater and Kalani Miller on March 27, 2022 in Hollywood, California. Mike Coppola/Getty Miller shared in a 2019 interview with Graham Bensinger how she and Slater met at the ASR trade show in San Diego, and if they were considering growing their family. She said, “At the time, me and my sisters were working for Roxy, which is the female counterpart of Quicksilver. And he was at the Quicksilver booth and he was in town for the contest at trestles.” She added that Slater had been riding for Quicksilver for 23 years at that point, and although she had worked with the company “for years and years,” they “never crossed paths, never seen each other anything.” “It was funny that far into it we see each other,” said Miller. “I remember exactly seeing him for the first time and like time really did stop.” Surfer John John Florence Says a Kelly Slater Rematch ‘Would Be Incredible’ a Decade After the ‘Greatest Heat’ Kelly Slater and designer Kalani Miler on July 19, 2014 in Miami, Florida. Aaron Davidson/Getty She continued to share that “hopefully,” one day, the two would welcome a child — or two — together. “I'm from a family of four. He's from a family of three. Now when I see people traveling with four kids, I can't imagine my family or anyone doing that. It's crazy. I don't know, maybe two or three.” As for whether the pair’s new addition could mean Slater retires after a 31-year career, Miller said in 2019 that it was a "maybe," adding, “I don't know because it would be interesting to see him try to balance both of those things and whatever, having to put his competitive nature aside for a second and put a baby first.” Kalani Miller and Kelly Slater on March 27, 2022 in Beverly Hills, California. Matt Winkelmeyer/VF22/WireImage "I think about it a lot," Slater previously told PEOPLE of possible retirement. "It's a reality, because it's not far off for me. My competitive flame is burning low, but it can spark up at times." Kelly Slater on Continuing to Surf Competitively at Age 50: 'There's Always Another Wave' Slater is also a father to Taylor Slater-Kelleher, whom he welcomed in 1996 with Tamara Mitchell, reported Essentially Sports.