What would you do if you were me?

I'm an all around good girl. I don't lie to my parents. I don't really misbehave. My average in school is 103. I've never really had any interests toward boys, until my junior year. The guy's name Mark and I've known him since freshmen year. He gets by in the institute with 85s and 90s but a lot of the time, he's a troublemaker and kind of like a player. He actually came to cl with a hickey on his neck. I liked him but he found out and he asked me out but I said no because my parents doesn't allow me to date until I'm out of high school. Now he asked me out again and said that he did a lot just to impress me, like getting 101 average, taking up music, joining sports teams and club. I didn't know that he liked me back that much. I want to say yes so bad but I can't lie to my parents and date him behind their backs. And they won't let me date him either. What should I do?