This can be a really hard question to ask your parents. How can it be that their little girl is so grown up that she wants to have a boyfriend? They just can't comprehend it.
When you like a guy and he likes you it is normal that you two go on a date. So, should you ask your parents before going on the date?
The best thing to do is tell them, or ask them. If you don't and they find out, they may get mad and then punish you and forbid you from seeing your crush.
And what if they won't let me go out with him? Well then remain calm. Whatever you do don't start throwing a fit and acting crazed. If you act like you are immature then they will for sure not let you go out on something as adult as a date with a boy. So, the best tactic is to study, do your chores and be chill for a bit, showing them that you are responsible. Let some time pass and then bring it up again.
Don't forget to tell them how you know this guy and from where. Tell them all about him, what he is like and what his family is like. The more they know about him the more likely they are to let you go out on a date with him. It may also be a good idea for them to meet him.