Sure, just like you CAN wet your pants. But it IS NOT advisable! You'll more than likely give the girl a serious yeast infection and then no one would want to have sex with her.
If you want to do anything with your girlfriend's vagina that will please her and not impregnate her, give her oral sex.
No, they urinate from a hole between the clitoris and the vagina.
They urinate from their urethra, same as boys. the female urethra has an opening just above the vagina opening and just below the clitorus, care should be taken to keep the urine uot of the vagina as this could cause an infection.
Yes. Urine does not come out of the vagina
No. Females urinate through their vagina.
the urethra
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.
Absolutley not.
vagina
from her downer parts if you mean 'girls'
No, urinating from the vagina does not affect the menstrual cycle or the chance of getting your period. Menstruation is controlled by hormonal changes in the body and is not related to the urinary system.
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.