What should i wear to my friends pool party{plz add picss and prices}?

in my other question i asked about my friend aisha and my crush{look at that question first or this will make no sense}so aisha dumped tom,because she didnt want to ruin our friendship but we still both like him..now aisha is throwing a pool party and is inviting our crush.i want to look amazing and i really trust you guys for great opinions.im really into black emo stuff so i wanted to let you know.and umm nothing pink too.i would really like a two piece but if you find a one piece that you yhink i would like that would be nice too.thanks