Man, when you go to this prom thing, you will be seen as king. You probably dont care about that, but like, with you age, size etc. the girls are just gonna be admiring you, your date is gonna be all over you even more because of it and all the boys in comparison will look..blech in comparison. This isnt exactly a thing I would jump up and down about because you probably could care less about being 'cool' amongst youngins, but atleast you can be at ease and just watch out for her, just chill with her instead of trying to impress...you're already the hit, there is no work. If you say she doesnt drink, dont drink too much if at all. She might feel out of the loop if the guy she's with is doin it...teenage minds, you know how it is, it wasnt long ago.
But yeah, Div said it best. Be a gentleman. In their eyes, you're probably already respected, just continue to be chill and be cool and everything should flow smoothly. I'm sure you already know this all anyways.
At the end of the day though, if there aint no follow up thread on how you got to taste the sweetest fruit, the nani, than this is entire discussion was for nothing...just kidding....
...or am I?
....I am.