Mostly water
You can't do anything with a girls vagina unless you are the girl who owns the vagina! When it comes to women's vagina's you can do whatever the woman allows you to do, and nothing more.
vagina
It is not a good idea. The fluid that is normally made by the lining of the vagina does clean it. You may be introducing some thing that should not be there.
If he touched another girls vagina... he is cheating.
Girls never develop hair on their vagina - the vagina is the internal part of the girls genitals. Girls develop hair on the outside of their vulva and mons pubis as they enter puberty at around 10 years old.
A female's vagina is usually of equal length to her hand.
A vagina
vagina
What comes out of the penis is made specifically to go inside of the vagina as is natural. So no, seminal fluid can not kill brain cells.
no i'm sorry, a sperm has to enter a girls eggs in the vagina, that is the only way a baby can be made.
It is possible for HIV to transfer when swallowing HIV positive vagina fluid.
No.