Your sister can be such a nerd. She spends so much time alone in her room, just reading. It is such a shame too, because you think she could be a real stunner if she just made a little effort. You are sure all the guys would be after her if she just tried a little harder. Lucky for her you are an awesome brother and found a way to make her more likable without her having to do anything at all. After a short search on the internet you found a neat little button that is meant to transform nerdy girls into absolute horndogs. All you have to do is get her to watch you push it in front of her. For a second you worry that it has had no effect on your sister until she lets her hair down and starts writhing around on the bed. Before you know it she is naked and telling you how the brothers and sisters in her book are always fucking each other. You have never seen a girl this turned on before, especially not your sister! Seeing as you were the one to push the button you feel it is only right to help satisfy this new desire of hers. Plus she looks so hot right now, all you want is to cum inside her. After fucking her once, then watching her masturbate you wonder just how powerful that button is. Your sister cannot get enough. When she starts humping her pillows you worry that her lust is insatiable. Clip contains: you catch your sister reading and decide to transform her into a hot horny girl with the use of a magic button - pov fucking - taboo - watching sis finger, masturbate, and pillow hump