Mom & dad are fighting again & your new step-sister just can't take it anymore. She comes into your room & finds you in the blanket fort you built. She asks if she can hide in there with you, and you agree. She's pretty upset. She thought her mom & your dad would be good for each other, but all they do is argue. Sister cuddles up to you & lies her head on your chest, and that's when she notices your boner. She's curious about it, asks if she can see it. She peeks into your underwear & giggles. She's never seen a penis in person before, and certainly not a hard one. She pulls it out of your underwear & pokes at it. That, of course, makes it harder. Then she actually strokes it a little bit. She seems curious about how hard it can get, and asks what she can do to make it harder. You tell her to put her mouth on it, so she playfully tries licking it, then she puts her lips around it and starts to give you a blowjob. She asks if you'd like to see her parts as well, and of course you want to, so she takes off her panties. She shows you her pussy. Then she tells you she has a secret, but you have to promise not to tell mom & dad: she was at a sleepover & her friend showed her a video, so she knows how to "do it" now. There are a few things she wants to try, and she asks if you want to try them too. She climbs on top of you in cowgirl style & starts to ride you. This is so amazing, you can't believe it. Then she says that she saw this position where the guy is behind to girl, and she turns around so you can put your cock inside her in doggystyle. She complains that it hurts a little, but she still wants to keep going. Then she lies down on her stomach & you have sex in the "prone bone" position. Sister doesn't know what it's called, but you've seen it before in a video. Then she says she wants to try the same thing, but with you both lying on your sides. You get behind her & put your throbbing cock back inside sister's wet pussy, barely able to contain your excitement. She says that she feels really strange & doesn't know what's happening, and it turns out she's having an orgasm. She cums on your dick. You can feel yourself about to cum as well, so you pull out & shoot your load all over her pussy & leg. Just then, sister thinks she hears your parents coming, so you both frantically dress. False alarm. You're both relieved & exhilarated. When you were having sex, you didn't hear your parents fighting anymore. Your sister suggests that you should play this "game" anytime your parents are fighting, and you wholeheartedly agree.

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