The True Beauty host, 29, reveals to Parade that showering twice a day with her beau of four years, Nick Lachey, 36, gives them time for "intimate conversations."
"We shower in the morning and we shower at some point during the day or before bed. We both have our own showerheads so we just talk while we're soaping up and doing our hair," Minnillo tells the magazine.
She adds: "It's not a sexual thing and it's not a romantic thing, it just becomes an intimate thing ... I've had some of my most intimate conversations with him in the shower."
In fact, talking is one of the main reasons the couple have been able to maintain their longterm relationship. "You have to talk through everything," she says. "We talk daily about things that upset us. It's about having a sounding board because if you hold in all your thoughts, dreams, anger and anxiety than you're only hurting yourself."
The topic of conversation for the couple has lately turned to the possibly of appearing together in a reality show – something Lachey knows well from his stint on the wildly successful Newlyweds: Nick and Jessica with ex-wife, Jessica Simpson.
Minnillo has some doubts about putting their personal life in front of the camera, perhaps because of the toll it took on Lachey and Simpson's marriage.
"Nick has done [reality TV] before and he was very successful at it and whatever he chooses to do with his future I will support him 100 percent," Minnillo says. "But me personally, I don't know. I think that there's something to be said for keeping intimate moments to yourself."