Parents are out of town and its just my young step-brother and i at home. I find out he is a virgin and i see him getting hard as we talk about it. I tell him to pull down his pants cause i wanna show him what it feels like to have a girl suck on his cock. I slowly put it in my mouth and he loves it.. getting harder and harder as i continue. I talk him into fucking me and i can tell hes getting off most thinking about how i am his older step-sister and how we can never tell our parents. LOTS OF DIRTY TALK/