So apparently I'm a slut...

Ok I know everyone has different opinions when it comes to sex, but I don't think anyone has the right to label someone as a slut! I have slept with more than one guy, currently on number 4. My mom and sister who knew I was sleeping with my last boyfriend just keep going on and on about me being such a slut! It really bothers me. Yeah I sleep with guys pretty fast like the first date fast lol! But I just feel like if you both are feeling it then why not! I don't feel like having slept with 4 guys is that big of a number anyways. So I just want to know what you all think!