There's a chapter in Lena Dunham's new book where she talks about her little sister Grace. It's a story about a little sister becoming herself and the big sister not really being ready to accommodate all that.

Dunham writes: “What I really wanted, beyond affection, was to feel that she needed me, that she was helpless without her big sister leading her through the world.”

I could have written it. Big sisters have to protect, filter, make things infinitely harder for little sisters. It's not just our job, it's who we are.

My baby sister got married this month. Before she walked down the aisle, I said, "I"m so happy you found your person. Someone to make you happy and mow the lawn for you."

"Yeah, Mike hires someone to mow the lawn," she laughed. "But I'm glad, too."