"Because we've grown up. You’re a boy, and I’m a girl, so we can’t sleep together anymore," Cynthia explained.

"But your parents sleep together, and so do mine," Caden countered.

"That’s because they're husband and wife!"

"Then let’s be husband and wife too."

Cynthia was taken aback. Even though Caden was two years younger than her, he should understand what being husband and wife meant.

"Caden, how can we be husband and wife? We’re siblings!" She corrected him.

"Why can’t siblings be husb