At the end.
IMPROVING ANSWER: Just before he falls asleep.
The same as anything else you digest
If your semen smells nice, your sick. Semen smells like a sort of bleach.
I don't think you came.
No. When you swallow the semen, it goes to stomach and digested. Sputum comes from your lungs.
The urethra is responsible for ejaculating sperm and expelling urine in men.
Puberty. 12, or 13 probably.
you get a come sandwich
Most of it does. However, it can leave stains.
No, semen cannot come out of a boy's butt. Semen is produced in the male reproductive system, specifically in the testes and is expelled through the urethra during ejaculation. The anus is part of the digestive system and does not have any connection to the reproductive system.
It's called 'semen' (see-men) and it has sperm in it. The semen can be made to come out forcefully during an ejaculation, part of the sex act. If you can not ejaculate yet it is probably because you are not old enough and haven't got that far in your development yet. it usually starts around pre-puberty from the age of 10 and around. That is when semen can come out but semen does not contain sperms until you have reached puberty.
There is no way to not allow semen to come out of the body, short of having your sexual parts malfunction or removed. If a male does not ejaculate manually or through intercourse, the body will expel excess semen, which is constantly manufactured, through nocturnal emissions, or "wet dreams."
some semen will release when it is ready, its perfectly normal, because it needs to come out one or another!