Oh my God stepbro, what are you doing back home already? I thought everyone was out so I decided to take a swim in the pool topless. What would our parents say if they knew you were ogling me like that? What do you care if I'm topless anyway, I just want to catch a good tan on my whole body and... oh god, is your dick getting hard right now? Please stop touching yourself while you're talking to me, I don't care if you tell mom and dad that I swam topless. If I just let you watch, will you just leave afterwards? Oh wow, I don't remember it being so big, but then again, I haven't seen your dick in a long while ;) No, you can't touch me silly, but I'll touch myself for you if that will help you cum faster! Are you getting close? Wait, don't cum yet, I'm gonna give you a countdown and you'll cum when I let you. And I just hope you don't dirty the pool since we all have to use it for the remainder of the vacation!