I went to my favorite porn sites, took my pants down, and started jerking away.About 10 minutes into this, I looked and caught a glimpse of his sister...in a reflection from a picture on the wall. She was standing right at the crack of the door, peaking in. I decided to not react to it, because I didn't know what else to do. So for a bit I just refocused on the porn that was before me, and continued stroking my cock.I kept glancing up at the reflection to see if she was still sanding there, and. Scott reminded her that she could never tell her mother and she promised and said that she knew they would both be in terrible trouble and besides, no one else cares enough about her to teach her these things. Scott gave her a big hug. He led her to the living room and set her on the sofa. Kneeling down in front of her he leaned forward and took a nipple into his mouth and began sucking and gently nibbling on her eraser sized nipple. Amanda leaned her head back and closed her eyes. Another new. .i started to wank furiously at what i was seeing..then she got up and grab his hand and walked back into the hallway and upstairs..i listened for a minute as she locked the bedroom door and sat on the bed with a squeak of the bed..a few noises later and some moans later the bed was rocking,squeaking and hard fucking was going on...i wanked harder and harder and i wanted to see.I took off my shorts and walked upstairs and listened as i got to the door to her saying "your cock is massive, its. The reason I am writing about her is that a few weeks back, I started having sexual fantasies about her, about her with older men and the sheer pleasure they would feel, if they could fuck her in the way they wanted to.That night as I lay in bed, I found myself masturbating, and actually having a really great orgasm, at the thought of watching her get it off with an older man. To make matters even stranger, I felt no guilt or shame, I just wanted to watch her perfect body bounce on a hard cock.