Celebrity Parents Lauren Burnham Says She's 'Proud of This Squishy Belly' 11 Days After Birth of Twins: 'All Good' Lauren Burnham and husband Arie Luyendyk Jr. welcomed twin babies Lux and Senna on Friday, June 11 By Benjamin VanHoose Benjamin VanHoose Twitter Benjamin VanHoose is an Associate Editor on the Movies team at PEOPLE. He's worked at PEOPLE for over three years as a writer and reporter across our Entertainment, Lifestyle and News teams, covering everything from the Johnny Depp v. Amber Heard trial to the Oscars. He regularly covers red carpet events and has interviewed stars like Drew Barrymore, Ryan Reynolds and Kirsten Dunst. He previously worked as a copy editor at Topix Media Lab. People Editorial Guidelines Published on June 23, 2021 12:30 PM Share Tweet Pin Email Lauren Burnham Luyendyk is praising her post-baby body. The Bachelor alum, 29, gave birth to twins — daughter Senna and son Lux — with husband Arie Luyendyk Jr. on Friday, June 11, and on Tuesday, the mom shared a photo of herself 11 days postpartum, celebrating her body for delivering her healthy babies. "11 days pp... just a reminder that not everyone gets a flat tummy back right after popping babies out & it's all good," she writes alongside the mirror selfie on her Instagram Story, posing in her underwear while smiling. "Proud of this squishy belly even if i have to ask, 'what could possibly be in there?!' lol," she adds. In a heartfelt post on an Instagram page dedicated to her new additions, Lauren — who is also mom to 2-year-old daughter Alessi — opened up about her first week with the twins. "Our hearts grew another 2 sizes the day you came into this world. This has been an incredible week and we couldn't be happier," she wrote. "You both already have such unique personalities. Senna, you're sweet, calm and have the biggest, round eyes (when you decide to open them). Lux, you are a firecracker and need to be fed THE moment you wake up." Want to get the biggest stories from PEOPLE every weekday? Subscribe to our new podcast, PEOPLE Every Day, to get the essential celebrity, entertainment and human interest news stories Monday through Friday. Lauren Burnham Luyendyk/ instagram RELATED GALLERY: Celebrity Babies Born in 2021 "We have to be ninjas when it comes to diaper changing, because you fly your legs all over the place," the mom continued. "Your big sis has been so excited to hold you and help. She loves you both very much! We are so excited to watch you all grow up together. Love you and see you in a few when you wake up!" Days after announcing their twins' birth, Arie, 39, shared a photo of Lauren and the newborns from the hospital, writing alongside the post, "Never been prouder of my wife than in this moment. She is the strongest woman I know and I'm lucky to be on this incredible journey with her."