Kim Zolciak Biermann Shares Secrets Behind Her Lasting Marriage to Kroy -- From Sex to Cell Phones (Exclusive)

Kim Zolciak Biermann isn’t shy to share the No. 1 thing she says keeps her marriage to husband of nearly six years, Kroy, strong.

“Sex, sex and more sex, for sure!” she spills to ET, adding that communication comes second.

“That’s definitely not my strong point,” she admits. “So, I’m consistently and constantly working on that. But, communication is key. You know, your husband or your wife, they’re not mind readers. As much as I think Kroy is, he’s not.”

The 39-year-old also confesses she often forgets to live in the moment -- and not on her phone.

“I think that’s the struggle that is now, you know, part of being a mom, a dad, with children, with your partner -- social media, phones, Facebook, Instagram -- all this kind of social media stuff,” she says. “Kroy will be talking to me and -- ding ding -- my phone will go off, and it’s an email, or something on Instagram, whatever it is, and I’ll just pick the phone up and he’ll be like, ‘I’m talking to you!’ You know, and so that’s kind of almost a constant struggle in my house.”

The new season will also feature the scary moment Kim’s 5-year-old son, Kash, was attacked by a dog.

“I’ve never been through anything so traumatic in my life,” Kim shares. “I hope to never go through anything like that ever again.”

“[It’s] been life-changing for me and everyone in my family,” she adds. “I dread [watching it back], I do. I dread it. I also hope to bring a lot of awareness to the situation as well. And that’s why I decided to share it, because I was definitely on the fence, to be honest.”

The low of Kash’s accident is quickly followed by the high of Kim and Kroy’s vow renewal, though. Kim admits it didn’t feel like the “right time” to do it, but they kept the plans, as the date held special meaning.

“It was seven years to the day that we met that we did it,” Kim shares. “Seven’s kind of our lucky number. You know, always wanted to do it. Having such a large wedding … was a lot. So, I always had hoped that we could do something really quaint and small, and Turks and Caicos is our favorite spot in the whole wide world. And then, to have all the kids there? We don’t even have a family photo, aside from the twins being, like, three weeks old … so, we got a family photo!”

“Our vow renewal was pretty spectacular,” she says. “I think that will definitely be a highlight, because there were so many other things going on at that point, so to actually watch it again will be pretty awesome.”

For more on the new season, check out the video below.