My Husband has had a porn obsession for a while now. He always sneaks off as if I don't know what he is up to. I was curious and at least wanted to see what kind of porn he watches... It turns out, he's into taboo sibling videos. I confront him about it, and eventually, he breaks down and tells me that when he was younger that him and his sister used to fool around and experiment with each other. It turns out they had done everything, all through growing up. He admits that he still fantasizes about it, and that it's on his mind all of the time. Hearing him open up to me, about an OUT THERE fetish really got me horny, so.... I decided to make him an offer, to stop being secretive and watching porn depicting sibling sex, that we should just invite his sister over and do the real thing (while I watch). We bring her over, and eventually tell her why she is there. She reluctantly gives in, after realizing she is just as into the things they used to do as he is. They suck, fuck, all while I stand there watching and playing with myself. The only slip up is Michael cums inside his sister, fortunately he was nice enough to clean it out of her with his mouth. In the end, everyone got what they wanted, and next time... I'M GOING TO JOIN IN.