Can a 13 year old date a 16 year old?

Hi :D, Im Samantha. There is a fifteen year old guy in my church and we like eachother. Nothing serious yet, not officially dating or anything. Well, we are going with our youth group on a mission trip when he is turning sixteen. Im turning 14 in a few months. If he asks me out, would it be okay to date. I absolutely realize NO SEX. And him being in my church, I think its the same. Anyway, please answer. Anything will be appreciated. Thank you :D