Aloha teen Party Ideas?

I am turing 14 and so is my twin brother, and we are having an aloha, on an private in ground pool. Me and my brother are inviting boys and girls to our party. We bought decorations from oriental trading, and it is all aloha beach themed. I got these beach trophies and we are going to play limbo but what else should we play? For games, that are fun for 14 year olds (nothing dirty or bad). We won't have a lot of family there (we will have a separate party for that.) Also as music goes i was gonna get I'm Yours (its kinda beachy and i got to have J) I think i will have aloha songs and maybe like One Love and other Bob Marley songs, any other suggestions? I think we will have hotdogs, burgers, chips, ect..We are gonna get water shotter things and beach so any other help i would love it!