There she goes she ran in her room She'll probably stay in there the rest of the day It sounds like it must have been something you said You know she's awful used to getting her way Why don't you kiss her (Why don't you kiss her) And while you kiss her (Tell her you miss her) Why don't you treat her (Why don't you treat her) Treat her nice Don't hurt my little sister Don't hurt my little sister Don't hurt my little sister You know she digs you and thinks you're a real groovy guy But yet I'm not sure that I feel the same We both know that you've been making her cry I hope you don't think it's some kind of game Why don't you love her (Why don't you love her) Like her big brother (Like her big brother) Why don't you tell her (Why don't you tell her) Tell her you're sorry Don't hurt my little sister Don't hurt my little sister Don't hurt my little sister Don't hurt my little sister (Why don't you love her) Don't hurt my little sister (Like her big brother) Don't hurt my little sister Don't hurt my little sister Don't hurt my little sister