She struggled fiercely; but I was bigger than her and I was feeling even hornier than her…I made her turn over; with her face pushed against the wal...l. I then rubbed my crotch between her exposed ass crack. She tried to escape from my hard grip; but she just rubbed even harder her buttocks against my growing erection.I put a hand down and loosened my trousers. Then I slipped my underwear down to my knees; so the girl could feel my hard cock between her nice firm buttocks. The bitch was hot,. Rusty then spoke to Mr.Penny and he went into the toilets.By now my mind was churning, there could only be one explanation for what l was seeing, Rusty was obviously taking money and allowing these men to push their cocks through that hole for my sister to suck. My own cock was straining the front of my trousers, l thought l was about to cum in my pants.After a few minutes l saw Mr.Penny come out and he too hurried away like some scuttling rat. A few moments later, Laura emerged, dabbing a wad. Not one, but 2 drawers of shiny tights and lingerie. After some experimenting with trying on different colors and combinations, I put on 2 pairs of black shimmery tights and a black nylon half slip. I played in them around the house for a while until I noticed lights coming down the long drive way. She was back already! I quickly put the others away in her dresser and threw my pants and shirt back on. When she came in it was obvious she was speeding and really talkative and jittery, but I was. I was still sitting on the bed and my dick was visible to her. She still had that smile on her face. While cleaning she came to the area where I was sitting and asked me to move because she wanted to clean behind the bed. I got and noticed that she was still giggling. Now was the time to make my next move, while walking past her I slapped her ass and asked her that why was she laughing, she made a face as if she did not like me slapping her ass but I knew the reason and did not asked her again.