While learning to use the potty is something to celebrate, CoComelon's J.J. doesn't know what the funny feeling is in his tummy and feels a little nervous at first. Luckily, his big brother, Tom Tom, knows just what to do. Read along as Tom Tom explains how to sit on the toilet--and if nothing happens, just wash your hands and try again later. Now, when that feeling in his tummy comes back, J.J. knows it's time to go potty and...