One is dark, one is pale. The parents are both mixed. Mom says:
“I noticed that both of them had beautiful blue eyes, but whilst Remee was blonde, Kian’s hair was black and she had darker skin.
“It seemed strange, but I was feeling so ill that I didn’t really take it in at that stage.”
The next day she mentioned the colour difference to her mother, who told her that Remee’s skin would darken as she grew older.
But as the weeks passed, Remee became lighter still while Kian went darker. And while Remee’s eyes stayed blue, Kian’s turned brown.
“There are some similarities between them,” said their mother. “They both love apples and grapes, and their favourite television programme is Teletubbies.
No, it’s not heteropaternal superfecundation; there’s one dad. This is just really rare (the article demonstrates it’s about a million-to-one).
What the article fails to mention: simultaneously around the world, a hundred future social scientists were born, who will make it their life’s work to study these twins. Just as identical twins who are separated make for fascinating reading, so too will these twins, should the family stay together.