Is it okay if a muslim girl date a christian guy?

Well, hey. I'm 15 and i like this guy and i think i'm in love with him. he's a christian. We both know we like each other. Then he asked me to date him yesterday. I'm so confused right now.. is it okay for a muslim girl to date? and the most important is with a christian? and is it okay to kiss a guy? *right on the lips, just a light kiss* but not make out or something like that! PLEASE GIVE ME AN ANSWER!! And thanks.