drinking and dating

Im 19 and this guy im going out with is 21, I love alcohol so my friends that are 21 are my way of getting an alcohol, this guy happened to be 21 and ge agreed to get me alcohol as long as im drinking with him, so we are planning to have a drink soon. He's a very decent guy, and he's the first guy im going out with, I just wanna know if anyone knows the result of the combination of drinking alcohol with a person you're going out with