Depends on the law where you live and if there are close in age exceptions but the 17yo can have reached the age of consent in her state but the 15yo have not. So it all depends on the law.
It could be statutory rape, depending on where they reside.
Yes he is an adult and she is a minor. He can be charged with rape.
Yes, in the US he could be charged with getting a minor pregnant because that's illegal in all states.
He is an adult in the eyes of the law and will be charged, tried and sentenced.
Yes, she can be charged with statutory rape since age of consent is 18.
Yes, if a complaint is made with law enforcement or Child Protective Services.
As long as there's no sex or marriage, you're clean.
it doesn't matter, the male will most likely be charged with statutory rape. it doesn't matter if it was consensual or not.
Colt if a male filly if female or foal for male or female
yes but the underage female/male has to have a parents consent
No.
Whether he would be charged with transporting a minor across state lines for illegal purposes is anyone's guess. Could he be charged for such a crime, yes, but it would depend upon extenuating circumstances.