They do everything together.

Defying all the odds, identical twin sisters Kerri Bunker and Kelli Wall from Salt Lake City, Utah, gave birth to sets of twins for the second time each.

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Wall gave birth to her pair eight weeks early and Bunker’s arrived a month before their due date.

Each set of twins and their mothers are doing great and are perfectly healthy.

Bunker, 36, admitted that she and her husband were in shock when they heard the news.

“Our jaws dropped. We weren't trying for kids, we weren’t expecting them, not let alone two,” she said.

Wall and her husband wanted another child and couldn’t believe she was having doubles again.

“I felt super shocked. It was a surprise,” Wall said.

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The moms joked that while they will never be able to do dinner again, they will get through this double duty together.

Bunker said: “Both of us still look at each other and think, 'did this really happen?'”

Wall admits: "Yes, there are days I’m frightened. Oh my gosh I think ‘How can I handle this?’ But we have done this once. I think we can handle it.”

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