Brittany Mahomes is showing off some skin this spring! Brittany, 29, and her husband, Patrick Mahomes, celebrated the annual gala for their foundation, 15 and the Mahomies on Thursday, May 15. Brittany arrived in a Nicholas drue draped asymmetrical midi dress in the linea print, which originally retailed for $595. The colorful cutout gown included a high slit and a twisted off-the-shoulder detail. She paired the look with a red Fendi 2021 O'Lock mini camera case purse and Yves Saint Laurent suite mule sandals in the arancio color. Her glam included an elevated updo that brought the attention to her bright peachy blush and light pink lip gloss. She kept the accessories simple, with a simple gold bangle and her engagement ring. Meanwhile, the Kansas City Chiefs quarterback, also 29, sported a more neutral look. He arrived in a light brown set, which included Louis Vuitton workwear cotton canvas blouson, which retails for $2,790. He paired the jacket with matching denim pants, as well as a black t-shirt and two gold chain necklaces. The fundraising event was hosted at the Shadow Creek Golf Course in Las Vegas, and friends of the couple, including Travis Kelce, Johnny Manziel and Matt Leinart, were in attendance. The 15 and the Mahomies foundation “supports initiatives that focus on health, wellness, communities in need of resources and other charitable causes,” according to its official website. 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 celebrity news to compelling human interest stories. The Thursday Gala followed Brittany's first Mother’s Day as a mother to three! Patrick and Brittany welcomed their first child, daughter Sterling Skye, on Feb. 20, 2021, followed by their son, Patrick "Bronze" Lavon Mahomes III, 2, on Nov. 28, 2022. The couple recently welcomed their third child, a daughter named Golden Raye, to the family on Jan. 12. During the Sunday, May 11 holiday, Brittany posted Instagram stories of Sterling and Bronze enjoying playing on a huge inflatable slide and a giant trampoline. That same day, Brittany reflected on motherhood, calling it her “greatest joy.” Adding that she “thank[s] the Lord every day for allowing me to become a mom.” “I love every second of every day that I get to spend with them,” Brittany noted. Patrick also took the opportunity to pay tribute to his wife and posted an Instagram carousel of photographs of her and their children. “Happy Mother’s Day! Love you! ❤️,” he captioned the post. His tribute was met by a cheeky comment from Brittany, who wrote, "I love you🥹 thanks for making babies with me☺️🤍."