What is Super-cousins?
1.
The offspring of siblings who marry siblings, who are doubly-related cousins. For example, if there are two brothers, Joe Smith and John Smith, and two sisters, Jane Doe and Jenny Doe, and Joe marries Jane, and John marries Jenny, their children will be super-cousins and twice as related as normal cousins, sharing likeness and many characteristics more so than normal cousins.
"Jim and Jack are cousins, but they look and act exactly alike!"
"That's because they're super-cousins."
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