There isnt a rule about it but honestly i think you should wait.
ask her out
No.
No, because a 14 year old is way more advanced than a 12 year older. Even if the 12 year older thinks they're mature, no they aren't ready for an older boyfriend or girlfriend at 12 maybe college.
At the age of 14, certainly not. The 19 year old would be up on charges and the 14 year old would be a runaway.
You don't.
Wait until you are 13 or 14
Yes.
Yes. Even if you are with her and her parents, an 18 year old can get in toruble for that.
If he says that he is in love with her then ok but it's not common for a 14-year-old to be like that. He probably just likes her.
She is Nick Jonas's 14 year old girlfriend and she is from England.
She may have had an abortion or a miscarriage.