GROWING UP "NORMAL"
* In some boys, one or both breasts may grow a little bit and become slightly sore. This is normal for boys during puberty and will usually disappear after a short time.
*The testes and penis may be different in size in different boys and men.
*Average penis size is 5 - 7" long and 1 1/2" wide when erect, most penises are about the same size when erect.
*It is a good idea, if you play sports, to wear an athletic supporter (jock strap) which helps to shield and protect the testes and penis from injury.
*The bigger the penis is when it isn't erect, the less it usually grows when it is erect; the smaller the penis is when it isn't erect, the more it grows when it is erect.
*When a man ejaculates, he usually releases one teaspoon of fluid that contains several million sperm. Sperm can live for several days.
*An ejaculation during sleep is called a "wet dream" or nocturnal emission.
*Many boys and men masturbate (stroking of the sex organ for pleasure). It is normal if you do and normal if you don't.
*Frequent masturbation does not cause harm to your body.
*There is no harm in not acting on every sexual urge; semen cannot get backed up and have to be ejaculated. Occasionally a boy might feel some discomfort if he is sexually excited for an extended period of time. This will disappear when his is able to relax.