Hawaii?!

Hannah and Taylor are ordinary twin sisters who won all inclusive Hawaiian cruise, but when they get on the boat they don't expect to find ONE DIRECTION staying in the room right across from them! Niall and Harry are both single and they both really like Hannah and Taylor. But what will happen when Harry and Taylor fall in love ,and when Niall and Hannah fall in love. Is it just a summer fling? Or was it actually meant to be?