Coming Out To Family/Friends

Madelyn
So, I'm Pansexual. I haven't told anybody bedsides my 3 closest friends and my brother. Because of the positive feedback and acceptance of my peers, I want to cone out to my family. My concerns with doing this are; my mom doesn't really think anybody my age is anything but straight... I told her about my two good friends going out (they are both girls and are openly Bi) she responded with " honestly those girls aren't even bi, they don't even understand what sexuality means!" This pissed me off becauseI like girls and if I come out to y mother, she will think it's just a phase, hat do I do???