Judy Blume Demonstrates 'I Must, I Must, I Must Increase My Bust' Exercise On HuffPost Live

When Judy Blume, author of beloved children's books and young adult classics from "Blubber" to "Forever," appeared on HuffPost Live last week, there was one thing we all hoped she would talk about -- and she didn't disappoint.

A viewer asked Blume to demonstrate the famous "I must increase my bust" exercise from her book "Are You There God? It's Me, Margaret."

Blume said, "I'd be happy to show you, but I also have to say it doesn't work," and demonstrated (watch above).

We're not willing to give up on that magic just yet.

Watch the full segment on HuffPost Live.