Your friends at school keep picking on you because you don't have a girlfriend and as your sister, I feel so bad! I ask if there's anything I can do to help and you tell me you want me to pretend to be your girlfriend by taking pics of me to send to your friends. At first, you just want a normal pic but everyday you want more and more! Flashing my brother is one thing, but sucking your cock?? You beg and beg and after all, I do love my little brother and I'll do what it takes to make you happy. I suck your cock for a quick recording but once I'm done, you tell me you're streaming this to Instagram live! Your friends keep egging you on and say that if I don't ride your cock, they're going to tell EVERYONE, including mom and dad! I can't let this happen so I do it. I ride you from the back and the front until you cum inside me! I get up to leave, disgusted that my little brother's cum is deep in my pussy but your friends aren't done with me yet. They know I didn't finish so they want me to finish myself off in front of you. I do it, but I can't believe how dirty they made me get in front of my brother!!