Chapter 307 Sister's Erotic Videos: Ep 31

• Mark was almost in tears as he admitted to further violating Maryanne's trust. "God help me, Honey, I saw an opportunity to watch another man's reaction to your sexiness. He'd already seen the one video anyway so I agreed to let him jack off with me to your daily videos."
• Mark knelt by Maryanne's chair and laid his head against her thigh. "I'm so sorry. I know it was wrong but I got so fucking turned on watching him watching you." Without saying anything, Maryanne acknowledged his apology by calmly running her fingers through his hair. I was starting to get a better idea of the whole picture.
• "When you got home you no longer had that stimulus so you hatched a plan to watch me watching my sister." I said, jumping into the discussion. Maryanne looked at me like she was surprised I was still here. Fuck that, it was her idea for me to stay.