Sue was going to have her eighteenth birthday party. I knew her mother and father before she was born as we were close friends. Her mother Bea was fond of me and I used to spend a lot of time with her and her husband Peter. After Sue was born I used to baby sit for them so that they could have a little time to themselves at least once a week. They were a passionate couple and little Sue was getting in the way of there regular sex life, so when I was around they would take the opportunity of indulging in long afternoons of hectic prolonged love making.
They used their upstairs bedroom and did not realize that I could hear all the moans and groans and slurping sounds of a hard cock moving in and out of a dripping wet pussy. I would try to keep my attention on playing with Sue but some days when they were especially loud and the bed was creaking and shaking I would have an erection all the afternoon and a severe case of blue balls till I got home and jerked myself off.
I took care of Sue till she went to preschool. We were great friends and when I moved away I kept in touch with her parents and also with her. We had a special relationship and she loved and trusted me as her "grown up" friend, she felt she could share with me her most intimate feelings and thoughts and I loved her like the daughter I did not have. I took a few days off to be with Sue and the family and celebrate her birthday.
Sue looked gorgeous in a white mini dress that showed off her long legs and perfect 32C breasts with small coral pink nipples. Her hair was black and long and hung loose all the way down to her curving butt. Here was a young slim girl on the threshold of womanhood and her body was ripe to be transformed. I was surprised at the sensual effect she had on me and when she came running up and kissed me on both cheeks in greeting and innocently pressed her soft plaint body against me I felt my cock stiffening and I had to struggle to keep cool.
Two of her girl friends came over and as a treat I took them to the movies and we planned to go out for ice-cream later and so make a long evening of it. Bea said she had a headache and Peter said he would stay with her. The movie was terrible and after the first 15 minutes we all got up and left. The 2 girl friends saw 2 boys they knew and like the teenagers they were they excused themselves and left after thanking me and Sue for taking them out.
Since we were now alone I suggested to Sue we go home early and spend the evening with her parents. To my surprise she blushed deeply and said, "We can't go home for a few hours yet."
"And why can't we?" I asked.
Sue giggled and said, "I cannot tell you."
I remembered how noisy her parents' love making used to be and realized that the girl had finally heard them.
"Have you heard your Mom and Dad making love?" I asked.