Stop right there

At three months Natalie has decided it's time to try her hand at rolling back to belly. The minute I catch her with her knees tucked up to her chest I tell her "I don't think so Spunky Brewster!" and she smiles and gets a little twinkle in her little blue eye.
What I DON'T need right now is a roller!!!

If I could just get this shoulder tucked in, I could get over. When Mommy's not looking Papa likes to show me how, but don't tell her that!