My name is Joe and I moved in to live with a young lass, Ann was her name.It was her house and she had a 19-year-old son named Simon and a 18-year-old girl named Jill. It was an average size semi-detached house with three bedrooms that Ann with her children lived in for some 5 years before I came to live with them. I still had my own house, but I rented it out. I got on well with Ann's children as a step-dad. We would go on holidays as a family to the west coast of England about twice a year.
On this particular year we decided to holiday in a rented caravan in North Wales. We all got there on this Saturday, booked in and were give the keys. The caravan was normal, what you would expect in these holiday parks. After some time we sorted out the living quarters. Ann and I had the end bedroom and her children had the end of the caravan with a curtain to separate into two bedrooms for the two of them. We thought this necessary because of there age's. We all went out for a meal that evening and by the time we got back, it was 11pm.
Simon was a medium height thin lad with nice short brown curly hair and steel blue eyes. At times over the two years together I had see him naked twice both as he was coming out of the bathroom. He had a nice body, and he knew it, his dick was on the big side and was semi-cut. On both occasions, he would give me a big smile. Jill was a little smaller than Simon was but nicely shaped with dark blond hair. She was a bit of a tease when we were alone. I would catch her looking at me from time to time. Anyway, to continue the story that would change all our lives forever.
We all got ready for bed. Ann and I are active lovers normally, but we thought it best that we make love slowly and quietly as not to be herd by the now grown up children. I lay on my back and Ann slid on top of me and slowly slid her pussy over my hardness. We are usually very vocal in lovemaking but because of the situation we decide to 'whisper into each others ear' until we both climaxed. It was hard to make love quietly when not use to it, but we did try.
Ann was now asleep I was on my back looking out of the window at the full moon. Then I noticed a gentle shaking of the caravan. I listened for a few minutes, you could not hear it but you could feel it. Then I realized that one of the children was jacking off, I smiled wondering which one was it.
Next morning we got up, have breakfast, and went into town. The town was a little quite due to it being early in the holiday season. Early in the afternoon, the children wanted to go to the funfair. Therefore, Ann told them to be back at the caravan for 7pm and she and Joe were going back for a rest. We got back to the caravan at 5pm, which gave us 2 hours uninterrupted bonking. We lay in each other's arms after our noisy lovemaking. We seem to talk a lot after sex; this time was no exception. Ann told me that she had noticed Jill had a 'crush' on me' and she will be keeping an eye on the situation, we each gave a laugh. I told her she was a bit jealous. Maybe I am she said, but I worry because both Simon and Jill's hormones are rampant and they do look up to you.
The young one's came back at 7pm. Ann said to them come on get washed and dressed we are off to eat out tonight. We all got ready and walked out to a café for a meal. I noticed Simon was dressed up for a change. He had on tight blue jeans and a green tank top. He looked nice, the jeans showed off his sexy arse. Jill, as usual was well dressed up showing off her shapely body. I noted that Simon was playing 'banter' with me as we walked into the café.