This was the first day daddy let you walk. You were a newborn for a long time, especially while Daddy taught you to stop struggling and wishing for your old life back. Once you were broken, you loved the simplicity of growing up again, choice and stress taken away. You were no longer embarrassed by your diapers, and long ago your friends were shown what you became. Now your only focus, the thing that made your heart swell with happiness, was making Daddy happy, horny, and proud.
Once he let you walk, you showed your thanks by showing Daddy your cutest dress and the thick diaper peeking out from underneath.