Four Months

How is it possible that my tiny, baby Lyla has a chubby little chin and leg rolls?  And how could it be that she's now twice the size of "Cupcake?" 

At four months she's smiling, cooing, squealing, and laughing.  She adores the ceiling fan in our bedroom, bats at the toys hanging from her car seat, and creeps toward enticing toys.  She is sleeping peacefully through the night and is still working on rolling over. She found her hands the other day and has been obsessed with those silly things ever since.