Havoc is easy to expect, crossing the threshold into Dianna Scott's living room.

But that's not what visitors find.

Infant car seats are neatly set to the side. Two little girls bobbing around in red shirts, labeled "Thing 1" and "Thing 2" giggle and duck around the corner. Swaddled on the ottoman are two drowsy eyed infants, nestled together like pink, squiggly halves of a magnet.

All is tranquil as Dianna gives a quick update: "Those two are playing, those two are sleeping."

It turns out, she said with a smile, that it's actually easier with two consecutive sets of twins.

"The girls have a built-in play mate," she said of her 6-year-old daughters, Jillian-Kate and Acaja-Lyn. "My girls are super good friends."

As for the 3-month-old boys Brailey and Sakiyas, Dianna said, "I can wrap them together, not holding them, and they still have a warm breathing body next to them. It comforts them."

So it's a breeze, having two sets of twins, plus another 11-year-old and 13-year-old, Havalah and Bella?

Dianna didn't quite say that.

"I think I'm good at making chaos look good," she said.

Needless to say, life has changed after gaining four extra family members for the price of two.

Dianna, 36, doesn't mind strangers approaching for photos, she said, when they see the pairs of kids with identical smiles.

But she isn't wild about the questions when they go out in public, she and her husband Justin with their brood of six. Are they Mormon? Are they Catholic? Are they on state assistance? Haven't they heard of birth control?

No, no, no and yes, are her firm answers.

"My husband asks, 'Why do you answer?' and I say, 'I don't want to be a lowlife,'" said Dianna, a specialty hospital nurse, with a laugh.

Discovering the first time in 2006 that she was pregnant with twin girls was shocking, she said, though she acknowledges there is a history of twins on her mother's side.

Of hearing she was pregnant again last year, she said, "All I can say is birth control is not fool-proof."

She hadn't figured another set of twins could be possible, she said. She even remembers going to the doctor and saying, "I'm not leaving until I know I'm only having one."

The staff was just as taken aback at the news as her.

"They said, 'we've had some frequent flyers, but never with two sets of twins,'" she recalled.

Her oldest daughter Bella, who calls herself a second mother to her younger sisters, reminded mom that there would just be more tots to love.

"I've loved kids all my life, and I love taking care of them," Bella said. "I was very excited (about the new twins). I had been telling her for a long time after she had another set of babies, 'Get another one! Get another one!'"

Dianna was placated.

"Leave it to a 13-year-old to give me perspective," she said.

So the family has reached the point where the kids stop being kids and start being the brood. The pack. The herd. Where their impact on their local environment is a natural drain on resources.

Food is depleted quickly, Costco bulk products the key source of sustenance.

And there are unquestionably "bad days," Dianna said, like the soccer tournament in the Tri-Cities where one of the boys got sick, so Dianna and four of the kids squeezed into a bathroom-sized hospital room while the others kept playing.

It all just comes down to recognizing she can't control everything, she said, and, like those newly sober and restarting life say, accepting what she can't.

"All we could say is, 'OK, that wasn't the best weekend,'" Dianna said. "If I was uptight about everything, it wouldn't work."

Love keeps everything else afloat. Three doting grandmothers in the area pitch in with baby sitting and diapers. There are no complaints when the older siblings have to help.

When the babies fussed on Tuesday, the twin girls jumped on the couch and each set a baby on their laps, cooing and cuddling them like dolls.

Bella said she is happy to take a baby to bed with her when mom is overwhelmed. She enjoys minding the kids when Dianna grocery shops.

Her mother does a great job, Bella added, but two sets of twins can be draining.

"Sometimes at the end of the day, when we're not home and dad's at work, she gets tired," Bella said. "Right as we get home, she's like, 'I'm glad you guys are here. I'm feeling a little woozy.'"

Still, Dianna manages. When she goes for a 3-mile run, she said, the babies are in front of her in carriages and the girls beside her on their bikes.

"It's my thing," Dianna said of her exercise regimen. "Mom needs to have a thing, too."

Parents of twins should just focus on covering the essentials, advised Annie Laker, president of Twins and Company, a support group for such parents in the area.

"Life will be a blur for awhile," Laker predicted for Dianna. "But meeting those basic needs are the number one job."

There is another mother in the group with two sets of twins, Laker added, only one year apart.

Families like that tend to attract a lot of stares, she warned.

"It boosts you in the public eye. You're like a celebrity," Laker said with a laugh. "When you have two sets of twins, you will get lots of questions. Some people may pity you, which is not always a nice response. But if you don't mind attention, you'll get plenty."

Dianna said firmly that these babies are the last of her offspring.

But she's still suspicious.

"It makes me wonder, how many sets of grandchildren twins will I end up with?" she said.