ANSWER: Until it dries..... it lives the same amount as sperm if it was ejaculated..it can still cause you to be pregnant
Semen can stay alive inside a vagina for up to five days.
about 2 months
Close to 48hrs
A few hours
A person can not hold semen in their anal canal for long because it irritates it. Soon after semen is introduced, it acts like an enema and the person needs to go.
Semen stays alive for approx 2 days inside a woman.
till the end of time
0 it dies to pool water chemicals
Not Long, at room temperature and depending on the Ph probably minutes, certainly less than an hour.
No. They do not have to have wet dreams but they often do. Men can only go so long without ejaculating. If they do not masturbate, there bodies will flush the semen out for them while they are sleeping.