I went into the bathroom to use the toilet but soon as I got close to the door I could hear something weird going on. I did not know what I was about to walk in on with the sounds I was hearing. I can not believe my little sister Dixie is on the toiler masturbating while watching porn, I think I am gonna watch for a little. I surprise her and tell her she is a freak, but now I want her to be my slutty freak, I pull out my cock and start smacking it on her lips. Dixie pulls away but I pull her closer and shove my cock deep down her throat, I can tell she was a bit scared she has never seen me so aggressive. I slap her face and tell her to bend over for me, I wanna fuck her tight pussy. I have my way with my sister until I cover her face in my cum.