My younger sister Chloe was always small. She was the kid who needed a booster seat long after everyone else, the one we had to check twice for on amusement park rides. I was the big brother, the protector, the one who reached things on high shelves.

Role Reversal: It is common for older siblings to feel a temporary loss of authority when their younger sister becomes physically dominant, sometimes even "pinning them down" in play-fights.

“You’re quiet,” she said.

: A personal account where two twin sisters, three years younger than their older sibling, surpassed them in height by age 11 and reached their father’s height by sixth grade. Wrestling Rivalries