My sister and I have shared a lot of things in our lives. A room , clothes, stuff like that. We are 17 now and I'm really annoyed that when we talk to guys , they flirt with both of us. It gets me so pissed because what the hell. We don't want to share that. I hate when we like the same guy too because it gets competitive and we get mad at each other. Like right now there's a guy we both like and he flirts with both of us and I'm so pissed at that. Im gonna tell him of course. I know a guy shouldn't get in between me and her but this is just annoying I'm tired of it happening all the time. I'm mad at her as well for liking him too ah I know this all sounds dumb , I don't know what to do.