My mom found my vapes and assumes its my younger sister who actually had them and she plans on confronting us soon and I want to pretend like I had no clue because I want to have a good summer but if my mom believes me then my sister is going to have a horrible summer. But its my word against hers and my mom believes me more than my sister because shes a trouble maker and I have a really good story on what to say. I just feel horrible because if my sister gets in trouble it could ruin her birthday and she might know it was me and ruin our relationship as sisters. But I plan on moving out soon anyways and never talking to them so I dont know what to do.