no girls do not have a penis
A girl should not have a penis, small or otherwise. Girls with penises are almost exclusively boys.
Every girl has a different preference.
If a girl with braces sucks your penis properly there will not be a problem. Basically she should only be using her lips, tongue and throat. Some guys do like having their penis raked by the girl's teeth, but it still should not be a problem.
It depends on the girl and the penis.
It means you are curious about the opposite sex. This is very normal.
If you want to show a girl your penis. Tell her to came to you then when your close say "do you want to see a penis'. Then show her it . And make sure she doesn't tell a cop.
if the girl screams when you put the penis in you know.,, it doesnt have to huge, but the bigger the better ;)
it means that your unattractive and stupid.
Do not show a girl!!!!!!!!! That would scare a girl and make her disgusted!
log into a search engine and type in 'penis' you should come up with about 5 billion results.