The Taboo Affair Part One: The Discovery

My step-mother went down into our living room today and noticed it was a complete mess. It is clear to her that I decided to jerk off on the couch, and didn't even bother to pick anything up before I left the house. Clothes scattered, a random towel, my laptop still logged in, and the biggest bottle of lube she has ever seen! She is both grossed out, and curious, so she opens my laptop to see what kind of porn I watch. She starts looking and it seems completely normal, until she notices the video IS OF ME fucking my ex-girlfriend. She can't help but immediately get turned on. I am the much better looking more muscular version of her husband when they first started dating. Not only that, but from what she can tell in the video my dick is WAY BIGGER and I can fuck in ways she knows her husband never has. She goes back and forth in her head about how wrong it is that she is getting turned on by her own step-son, but she just can't help it. She starts to touch herself and then runs into her room to grab her dildo. She goes back and forth with accepting what she is about to do; even more before she puts the tip of the dildo in her dripping wet pussy and proceeds to make herself cum, while watching her step-son fuck a girl. The worst part is, all she can think about now is how bad she wishes it were her. She decides that she has to accept the fact, that she wants to fuck her step-son!