This process of normal penis growth can be disturbing for many young men. Since the testicles enlarge before the penis, many young teens don't notice any development at all in the beginning, and worry that they're not changing and that their penis is too small. Also, if you are overweight, fat tissue can hide the penis somewhat and give an impression that the penis is smaller than it really is. Some boys in your class may have started puberty well ahead of you and it may seem like they have an adult-sized penis-that can be very upsetting! But remember, it is difficult to know how large a penis will be in its erect state, simply by looking at it when it's not erect (or when flaccid).
Adult penis size varies considerably from person to person. And we live in a society that encourages us to think that a man with a larger penis has a better sex life than one with a smaller penis. This is constantly noted in sexual jokes and in the media. Well, the truth is that normal penises vary tremendously in size, and sex can be good for all sizes! You will need to wait a year or two after your overall height has stopped changing to see what final size your penis will be. If at any time during your growing, you are worried that your penis is abnormal, just go to your doctor and ask him or her directly about this. In almost every case, you will be told that it is fine.