(This was originally filmed as a custom video) Your step-sister Fiona is on the phone to her friend, who tells Fiona that she's been hooking up with a boy, but is reluctant to say who it is... Fiona promises not to judge whoever it is, and the friend eventually confesses that she's been fooling around with her own step-brother! Fiona is shocked at first but then starts to come round to the idea of messing around with her own step-brother, you! She's just unsure that you would actually go for the idea - how is she supposed to proposition you without asking you outright, and risking you telling everyone that she's a pervert who wants her own step-brother? She comes up with a plan to put on a sexy dress and test the waters, seeing if you'd be open to the idea of doing stuff with her... You're relaxing in your room when she comes in, wearing a slutty little dress and acting pretty weird. She's trying out sexy poses but is extremely awkward, and you can't help but tease her about it. At first she denies that she's up to anything, but when you keep laughing at her attempts at sexiness, she confesses that her friend had got her onto this stupid idea to try and seduce you, but she knows now it was a dumb plan. You're surprised, and tell Fiona that you'd actually be up for that - and if she'd just asked you outright, instead of coming in and being all awkward, you could have just told her straight away! She's surprised and not quite sure whether to believe you at first, but then excitement takes over and she lays out ground rules - no actual fucking, that would be too far! You agree and Fiona strips down out of her dress, trying to make it a sexy striptease but still feeling a bit awkward in front of you. You begin touching yourselves, watching each other and getting more and more turned on. After a while she asks if you'd like to touch her, and you caress her tits before playing with her pussy, which is getting wetter by the minute! Your step-sister starts to play with your cock, seeming fascinated by it, and soon asks if she could try giving you a blowjob? She gets super into sucking your cock, at last beginning to relax and forget the awkwardness of doing this to her step-brother. She's getting so turned on that she suggests grinding, and gets up on top of you to rub her soaking pussy along the length of your cock. You flip her over and grind up against her ass, teasing her pussy with the head of your cock, then throw her down on the bed and keep grinding against her until she can't take it anymore and says she wants to fuck! Neither of you have a condom, and she's not on birth control, but you're too horny at this point to stop! You agree you'll pull out before cumming, and you plunge your cock deep into your step-sister's pussy. You fuck her in multiple positions until she ends up back on top of you, riding your cock furiously as she gets close to cumming. You're feeling very close yourself and try to warn her, but she tells you to hold it, she's not there yet! You can't hold it back, and she's not getting off you, so you can't stop yourself from flooding her pussy with your cum! She feels you cumming and immediately panics, but your warm seed filling her starts her cumming as well! Just as you're both writhing and moaning in pleasure, your step-mother bursts in - catching you both in the act! TAGS: british, english, ginger, redhead, family affairs, boy girl, bg, taboo, fantasy, tattoos, tattooed, dirty talk, posh accent, blowjob, cowgirl, doggy, doggystyle, missionary, pussy fucking, creampie