Watching Porn With Your Step-Sis Part 5

(This is the fifth and final part of this series!)
It's been quite some time since the last time you and your step-sister had your 'wanking club', and things have been pretty awkward. As the two of you had grown gradually more comfortable with each other, you had started experimenting with boundaries, and the last time ended with your cock in your step-sister's mouth! Though she was into it at the time, your step-sister was clearly shocked by how far things had gone, and she's been pretty much ignoring you ever since! Finally, today she comes in to sit next to you in her usual spot on the sofa, and strikes up a conversation. She apologizes for being so weird around you for the last few weeks, and explains how overwhelmed and freaked out she got after sucking your cock. She admits that she really misses hanging out with you, and your wanking club, and shyly asks if the two of you could start it up again - going back to just wanking, of course! You tell her you'd be happy to, and your step-sister is visibly relieved and happy. She quickly strips off and the two of you start watching a video together; chatting away and pleasuring yourselves, just like old times. You notice that your step-sister keeps glancing nervously towards you, and eventually she gathers the courage to tell you just how much she's been thinking about what happened last time. She tells you that she's worried that she's ruined her brain now, as she can barely cum anymore, and the only way she's able to get off at all is to think about what happened between the two of you last time! She asks if it's been on your mind as much, and you reassure her that it has. You tease her a little about being a pervert, but then comfort her and suggest that since the two of you both enjoyed it and both can't stop thinking about it, perhaps you could try doing stuff like that again. Your step-sister is very nervous and unsure, and explains that she's scared she'll freak out again and make things weird between the two of you once more. You suggest that since last time it was her that did stuff, perhaps this time you could be the one leading things, as you're pretty sure you won't freak out... Your step-sister is confused, and asks what you mean. You tell her that since last time she gave you a blowjob, then this time you could go down on her instead. That would be fair, right? You can see that your step-sister is immediately excited by this prospect even though she's nervous, and she agrees and lays back. At first she stays watching the video as you begin licking her pussy, but soon she's just staring in wonder at you as you go down on her. She tells you she can't believe how intense and amazing it is, and her pussy grows wetter and wetter as you lap at it. Soon she begs to try sucking you cock again, explaining that she's not been able to stop thinking about it since the last time. She worships your cock with her tongue, passionately licking and sucking as she tells you how good it feels to touch you, and how turned on it's making her. Eventually she shyly admits that she's desperate for you to fuck her, and you push her back onto the couch, the video still playing in the background, and slide your cock slowly into her tight, wet hole. The two of you gasp at how insanely intense it feels to finally be fucking each other, and you begin thrusting slowly in and out of her before gathering speed to pound her hard as she cries out for more. You cum together, and your step-sister tells you she loves you and admits she thinks she's never going to want another cock inside her, only yours!

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