People.com Lifestyle Health Christie Brinkley, 63, Is Back in Her Bikini for 'Sports Illustrated' – with Her Daughters! The supermodel makes a major return to the magazine after 13 years, accompanied by her 31-year-old and 18-year-old daughters By Charlotte Triggs Charlotte Triggs Managing Editor, PEOPLE Digital People Editorial Guidelines and Brittany Talarico Brittany Talarico Brittany Talarico is PEOPLE's Deputy Style Director, where she oversees the brand's digital Style and Beauty coverage. This includes running lead on the Met Gala, which is among PEOPLE.com's top-trafficked red carpet events every year, interviewing the industry's top influencers (including all the Kardashian-Jenners), and breaking A-list celeb news (a New Jersey shore native, it is no surprise that her favorite interview ever was with Bruce Springsteen). Brittany is a style contributor to People Every Day Podcast and has represented the brand on national TV programs including Good Morning America and The CW's two TV specials on the British Royals. She joined PEOPLE from Cosmopolitan in 2013, where she was an Associate Editor. People Editorial Guidelines Updated on February 7, 2017 10:05 AM Share Tweet Pin Email Emmanuelle Hauguel/SI Christie Brinkley first covered the Sports Illustrated Swimsuit Issue in 1979 (then set a record by landing the covers for the next two years). For decades thereafter, she toured the world posing in one exotic location after another, before hanging up her barely-there bikinis in 2004. But now, at the age of 63, she’s returning to the SI Swim family, proving her agelessness once again. And this time, she’s brought along two very special guests. Brinkley is joined by her daughters, Alexa Ray Joel, 31, and Sailor Brinkley Cook, 18, in the magazine, on newsstands Feb. 15, and she says their encouragement was key to getting her back in her bikinis. “My first thought was, ‘At my age? No way!'” she tells PEOPLE exclusively in this week’s issue. “When I turned 30, I was like, ‘This is the last time I’m posing in a bathing suit!’ When this issue comes out, I’ll be 63. I thought, ‘Those days are over.’ But to get to do it with my girls, I thought, ‘One last go!'” In the sexy spread, the trio wears coordinating black swimsuits, including a cutout mesh one-piece on Brinkley, as they stand on the shoreline of an idyllic Turks & Caicos beach. Brinkley also poses solo in a number of skimpy two-pieces, including the show-stopping red bikini below. Emmanuelle Hauguel/SPORTS ILLUSTRATED Sailor, Brinkley’s younger daughter with ex-husband Peter Cook, who has already dipped her toe into the modeling world, says the SI Swim experience was “very empowering and liberating.” RELATED PHOTOS: Decades of Sexy: Proof 63-Year-Old Christie Brinkley Isn’t Aging A Bit Alexa, however, had a different reaction when asked to participate in the shoot and “needed to be talked into embracing new experiences.” RELATED PHOTOS: Christie Brinkley’s Most Iconic Sports Illustrated Swimsuit Photos And even though Brinkley admits to battling her own insecurities, she hopes her bikini-clad return will spark a conversation on ageism in the industry. “In a country that’s very ageist, people love to put you in little boxes,” she says. “Women feel very limited by their numbers. On a personal level, I thought, if I can pull this off, I think it will help redefine those numbers and remove some of the fear of aging.” For more on Brinkley, her gorgeous daughters and their life with a supermodel mom, read this week’s issue of people, out on newsstands Wednesday. What do you think of her SI swim return? Share below!