How do i convince my sister not to tell on me?

[Jay]

Your sister? She is family but i guess you two don't get along, so maybe persuade her, bribe her or just blackmail her and tell her is she tells then you are going to tell on her. Maybe just beat her up?LOL! If she is older than you then maybe just beg her not to or say you'll do her chores or something, but if she is younger than bribe her or just tell her to STFU and to to keep it quiet or you'll break all her toys and tell your mum something about her? Next time don't make it obvious and she is family i mean if anyone snitches it shouldn't be her? used to back up my brothers and sisters every time.. from a strict family ii guess we all kept ourselves under cover..
Hope this helps..
Good luck!