Your sister barges in your room asking to use your computer for a project. You hesitate, as you have some major secrets hidden, but she says she is only going to use your browser. You agree, and she goes to get on. When she logs in, she sees you forgot to close your browser, and her MANYVIDS PAGE is up! You've been jerking to your own sister's porn! She's shocked, and she immediately confronts you about it. You try to lie and brush it off, but it's obvious what you've been doing. She teases you, telling you how perverted it is that you stroke to your own sister. You start to get hard as she talks about it, and she teases you more. She tells you she wants to watch how you stroke to her. She begins stripping and showing off, getting you harder than ever before. Eventually, she tells you she wants to suck you, to satiate that craving you've always had. As she spits on your cock, sucking it sloppily, she tells you she wants pleasure to. She wants to take care of you with her pussy. You just HAVE to pull out. She begins riding you, grinding and bouncing up and down and back and forth, holding her arms above her head to push her tits out. She spits on her tits over and over, rubbing the spit all over her. She teases you, telling you how wrong and taboo it is that you two are fucking, but even more wrong that you have been secretly stroking to her for God knows how long. She gets you closer and closer, when finally she tells you that she is going to count you down. When you're about to cum, she is going to hop off so you don't cum inside of her. She starts counting, but you cum too quick, filling your own sister up with your seed. She gets pissed off, calling you a perv for accidentally cumming inside of her. She then brushes it off, saying that you two need to get cleaned up. Who knows what Mom would do if she caught the two of you...