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What happens when identical twins marry identical twins and have children?
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They would therefore be first cousins by law, but siblings by nature.
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It is so rare that very little research has been conducted on it
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This phenomenon occurs when identical twins have children with another set of identical twins within nine months.
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The story of a quaternary family
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They got married in, Twinsburg, Ohio in August 2018 wearing identical dresses, and even had identical wedding rings for the ceremony.
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They broke the news of their shared pregnancies in August 2020 with a Baywatch-themed photoshoot.
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The chance of you having a quaternary twin is 1 in 24666666.6667
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