You are in the shower and your step sister is back from school banging on the door begging you to hurry up as she needs a pee badly, come on your taking ages she yells at you trying to get in. You take your time as you always do and by the time you open the door she has gone quiet and looks a little embarrassed, she has pissed herself! She denies it and tries to get past you while you tease her asking her to show you her wet panties, you lift her school skirt up to reveal her pee soaked grey panties fuck you feel yourself starting to get hard. She has pee down her legs and soaked into her s...

You are in the shower and your step sister is back from school banging on the door begging you to hurry up as she needs a pee badly, come on your taking ages she yells at you trying to get in. You take your time as you always do and by the time you open the door she has gone quiet and looks a little embarrassed, she has pissed herself! She denies it and tries to get past you while you tease her asking her to show you her wet panties, you lift her school skirt up to reveal her pee soaked grey panties fuck you feel yourself starting to get hard. She has pee down her legs and soaked into her socks. This is the perfect opportunity to get her to do exactly what you want her to do. You threaten to tell everyone at school what has happened unless she gets naked right now, she reluctantly agrees there's no way she wants everyone at school knowing she pissed herself. She takes everything off while you perv at her big tits and little pussy, she thinks thats all you want but you are just getting started! Why do you want to see your step sister naked you pervert she teases you, you drop your towel and show her your throbbing cock. She looks shocked and giggles, stop it she doesn't want to see her step brothers cock but its so big and hard. Was it her pissing herself or her naked that has turned you on so much? You go further with the blackmail making her Kiss you, suck on her big tits and she has to suck your cock otherwise everyone is going to know about her little accident.

You go to her bedroom, she's only going to suck your cock for a minute or 2 ok NO longer and no one must know about this. She gets to work on you, fuck she's good so hot you have your dick in her mouth. She compliments your cock and she seems to be getting in to it. You want to eat her pussy, she agrees but a few licks thats it. You bury your face in her cunt, licking, sucking and fucking it with your tongue, she fucking loves it and cums on your face. She's pretty shocked her step brother has made her orgasm so strongly, I mean this is so wrong. You know she wants your cock but she's trying to resist and you grab a condom, if your going to have sex then at least have safe sex right. You fuck and after awhile she tells you she wants to ride you BUT she wants you bareback now and you need to tell her when your going to cum. She needs to pee badly again and shes going to piss on your cock while she rides you, Holy fuck you almost cum watching her peeing while fucking you. Cum inside her shes on the pill she assures you its OK. You cum bareback in her while she talks dirty to you, she lied shes not on the pill and you are going to get your own step-sister pregnant. You are such a naughty step brother, you watch your cum drip out of her and she pisses all over you again. Filthy piss covered step siblings xx