Your little sister comes out into the dinning room and immediately starts to explain how much homework she has to do, but she loves doing it. Your little sister is kind of a nerd… you know that she hasn’t had much experience with anything sexual but you want to know for sure.. you ask her if she wants to hang out for a bit so you can start asking her personal questions. You ask if she’s seen porn, had sex , or given a blowjob. She says of course to all of that but quickly admits that she hasn’t ,. Do not tell anyone .. it’s so embarrassing! She’s waiting for the right one and she also just wants to focus on school and get a nice career before she can start focusing on all that. You then ask her if she wants to practice on you. Since she is in college she should already be experienced by now. She agrees but she has no idea what she is doing.. she gives her big brother a quick blowjob, she thinks a few minutes is enough experience for now. But you tell you that you need to finish.. I guess you can cum on my boobs she says.. but you have to hurry I need to get back to studying..