First Kiss??? Please help?

(Beware this is kinda long!) Okay so my boyfriend and I talk a lot about kissing each other but the thing is that is trough texting since we don't go to the same school! But I'm more nervous about HOW tho kiss him like where do I put my hands--oh btw its both of our first kisses and it would most likely be in a movie theater since that is the only place our moms will allow us to go since my mom thinks 13 is to young to be in a serious relationship and please don't say thats to young cuz it isnt one of my closest friends is making out with her boyfriend and haveing him hang out at her house then again she is a year older than me but he is in my class. But my friend who is u kno making out already asked if i had kissed my bf i told her no and i was afraid i would mess up and she told me no one can mess up a kiss! But I'm Still afraid i will since I'm a klutz and everything and well people i guess i just want your advise on how to kiss and please if you have a story please share!!