(This video is a bit cheaper because it's shot on my phone rather than my filming camera!) It's been a couple of weeks since your step-daughter Fiona got herself out of being grounded by helping you out sexually! Today she's heard that her step-brother is upset, and when she finds out that you've grounded him for getting disappointing grades, she decides to be a good big step-sister and offer you the same thing as last time, in return for her step-brother's freedom! You ask her if she'd tell her step-brother what she offered you to get him out of being grounded, and Fiona says you guys can just tell him that she sweet talked you out of it... But you tell Fiona that would be lying, and lying is wrong. In fact, you should call her step-brother in right now so he knows what she's offering to do for him! Before she can stop you, you yell for your step-son to come join you, and tell Fiona to explain to her step-brother what happened last time and what's going to happen again... Fiona awkwardly and reluctantly explains to her step-brother that last time, to get out of being grounded, she sucked your cock and let you cum in her... And she was going to offer to do it again, for her step-brother's sake! You tell them both that you're happy to go ahead with this bargain, as long as your step-son stays in the room so he can see exactly the consequences of his and his step-sister's actions. Fiona tries to argue but you start stripping off her clothes, whilst telling your step-son to watch closely! As Fiona starts sucking your cock she seems embarrassed to have her step-brother watching and keeps trying to tell him to look away, but before long notices that he's actually grown hard watching you get your cock sucked by his step-sister! Fiona is outraged and tells him he better not start touching himself, but you tell your step-son to go ahead and jerk it if he wants to! You make Fiona get up on the bed and start railing her from behind, as as you fuck her hard she keeps talking to her step-brother; telling him he's messed up for wanking over this when she was only trying to help him! Your step-son cums as he watches you fucking his step-sister, then you pound Fiona even harder until she's unable to keep herself from cumming too - at which point you flood her pussy with cum, then tell both your step-son and step-daughter to be more careful about getting grounded in future! TAGS: british, english, redhead, ginger, tattoos, tattooed, solo female, roleplay, dirty talk, posh accent, pov, dildo, taboo, step-daughter, step-dad step-daughter, step-father, step-brother step-sister, blackmail, reluctant, bargain, doggy, doggy style, blowjob, dildo sucking, dildo fucking