When I used to stay at my older half sisters in the lounge her boyfriend Ryan who was 8 years older would stay up watching TV when she went to bed and in the early hours of the morning we would have quiet soft sex. We would always have to be quiet and careful and the sex was always pretty tame because if he went fast or hard I couldn't help but scream or moan and it was so loud in the night. One morning tho when my sis had to work and I stayed he came out in the morning and woke me up said we was home alone. This was the first time we could really get into it and he didn't hold back. It was amazing sex and I was screaming uncontrollably with pleasure and he was putting me into all positions I have never been in. It was loud and crazy sex right up until we seen a shadow at the window. My sisters step mother Anna had turned up and walked past the window right where I was getting pounded. OMG she knocked quietly and we panicked and stopped silent. She went away and we was shitting ourselves. Did she hear us?? Of course she did! There's no doubt. Later that day my sister was home and her step mom Anna came back. We were all sitting talking and she seemed a bit awkward about it. She said " oh I came around earlier weren't you home?? My sister replied " I was at work but Ryan and Tiffany were here!!! OMG the look on Anna's face said it all! She had heard the sex and thought it was Ryan and my sister but it wasn't hard to work out what was really happening. The thing is she could never really say anything. What would she have said?? Oh I swear I heard fast pleasure moaning and distinct slapping sound of rough doggystyle sex! lol omg