(This is part 3 of a series) It's been a couple of days since you and your step-sister took things a little too far while you were spying on your parents, and you somehow ended up with your cock inside your step-sister while she told you all her fantasies about step-mom and step-dad joining in... Today, she's come to talk to you in your room, and for once your parents aren't fucking loudly next door! Your step-sister tells you about how she's convinced that your step-mom and step-dad have an idea that the two of you have been fooling around, and that they're actually happy about it! She says that they even caught her listening outside the door yesterday while they fucked, and when they came out and saw your step-sister spying on them they looked pleased! Your step-sis says that step-dad gave her a look that really made her think that the two of them would want to join in, and that you could all be a happy step-family experimenting together... She says she wants to try and explore this and bring it up to them somehow, but you tell your step-sister that she's being crazy and that it's way too risky to mention anything to them, as she could be reading things wrong! Your step-sister tries to convince you that she's right and that it would be super hot to hook up with your step-parents together, but you're too nervous and you make her promise not to say anything. Your step-sister sighs but agrees, then rapidly switches direction and asks if you want to fuck! You remind her that your step-parents are in the room next door, and since they're not currently making any loud noises of their own, they would probably hear you if the two of you started messing around! Your step-sister insists that she'll be super quiet, and starts teasing you and reminding you how much you liked being inside her before... She offers to suck your cock, saying she really wants to try giving a blowjob to her step-family member, and so you agree as long as she promises to keep it quiet! Your step-sister begins sucking you off as you struggle to contain your moans, then you flip her over and begin fucking her from behind, doing your best to keep quiet, and reminding her frequently not to moan too loud... Your step-sister quickly gets carried away, dirty talking to you about how good her step-brother's cock feels, and how she wishes she could try her step-dad's cock too... She begs you to fuck her like step-dad fucks step-mom, hard and fast, and though you keep shhing her she just gets louder and louder! The two of you cum together, with your step-sister moaning even louder as you fill her with cum, and then just as you start telling her off and saying that your parents could have heard her... The door opens, and your step-dad walks in! Your step-sister looks scared but pleased, and you realise that you fell right into her trap, and that she totally wanted your step-dad to hear and catch you!! TAGS: british, english, redhead, ginger, tattoos, tattooed, roleplay, solo female, dirty talk, posh accent, pov, dildo, taboo, step-dad step-daughter, step-father, step-brother step-sister, blowjob, doggy, doggystyle