because they are getting horney and getting a boner
It sounds like you are in the process of going through it.
No, all males, gay and straight, rub their penis, or masturbate, at some stage in their lives, and many do all through their lives. Being gay is if you are sexually or romantically attracted to the same sex.
Is there a separate path for the penis to make a baby? It depends on which side you're talking about, the male or the female. The sperm exits the penis through the same passage as urine. If you mean in the vagina, the penis enters a different opening of the vagina than where the urine exits.
not necessarily. but yes girls do have "mini penises" there clitoris is the same material of an uncircumcised penis same nerves and flesh.
The same as the penis of any other mammal; to pass urine and sperm.
Sperm cells leave the male body in a liquid called semen. They leave the male penis; the process is known as "ejaculation". This can happen during masturbation, during sexual intercourse, or without an obvious cause, often when asleep (the so-called "nocturnal emissions").
No.
No it is not too short, it is normal for your age. It will grow longer and thicker as you grow through puberty.
The same way you get milk out of a cow.
the same way as a garden hose
The noun penis is the same, both for english and portuguese, meaning the male main sexual organ.
Possibly. The nerves around the anus are the same or run parallel to the ones in the penis. This could cause a sympathetic pain in the penis.