When my sister asked me if she could live with me and my friend for a few months I thought it was a bad idea. We never get along but she didn't had any other choice so I accept it. I didn't seen her almost 2 years and she seemed a lot diferent and we get along much better than I could imagine. At the begining she didn't had money to pay for her part of the rent so I paid her share and she paid me back this way. Now she has a job and can help pay the rent but we still have sex once in a while.