"Just follow me and be quiet," I said. I started up the stairs and she followed. We reached the hallway upstairs and I walked to my brother's room. Just like before I started the process of slowly and carefully cracking the door so I could look inside. When I got it about five inches open I could see the screen. Sammy was still pounding away at his d**k and there were cartoons having s*x on screen. One had giant boobs, so I was pretty sure my mother would be satisfied. "What are you doing?" my mother whispered. But then we both heard the sound of a woman's moan coming from the computer. My mother pushed past me and looked at the crack. I looked at her face as she registered what she was looking at. She blushed and looked embarrassed to see my brother m**********g, but I could sense that s

