Chip and Joanna Gaines may have their hands full with five children, but that doesn’t mean they don’t want more down the road! In an exclusive preview of their interview on Sunday TODAY with Willie Geist, Chip, 44, can’t hold back his feelings for his wife — and his hopes for their future — as she discusses the “valuable” failures they’ve experienced while building their Magnolia empire. “I love you,” he lovingly gushes as Joanna, 41, speaks in the interview, which will air this Sunday, October 27 on NBC at 8 a.m. ET. “When you were just saying all those things, my heart just burst open.” Through her laughter, the mother of five reveals, “I call him coach! He’s coached me.” But Chip makes it clear that his feelings for his wife — with whom he shares sons Crew, 16 months; Duke, 11; and Drake, 14; and daughters Emmie Kay, 9, and Ella Rose, 13 — extends far beyond a supportive coaching role. “Forget coach! I’m talking in a much more romantic sense,” he explained. “Like, I could see Crew having a little sibling and me being like, ‘I love this woman!\’” Joanna jokingly interjects, “Oh, jeez. Willie, another subject!” before opening up about Chip’s adoration for children and having a large family. “When I’m 50, Chip’s gonna want more kids. Just know, this is gonna be the headline forever: Jo’s pregnant again,” she quips. “Chip with children is like business — there’s never too many.” “I’m like, ‘Chip I think we’ve got enough, I think we’re good!\’” Joanna continues. “He’s like, ‘I just think we can keep having them!’ I think Chip just loves a full plate.”