As Long As You Love Me. (A One Direction Fan Fiction.)

Olivia and Shannon, proud cousins of Niall Horan, get extremely lucky when going on a family vacation. The boys of One Direction get to tag along on the holiday, due to the fact that there are no boys Niall's age in the family, so he got to bring his friends. However, Niall isn't the only one the boys will hang out with, infact, a few of the boys grow a crush on the two girls. When relationship develop, will Niall stop them, will they last, and how will they keep dating when they go on tour?