MAY May lay very still. She knew she was seeing something which she wasn't supposed to see. A light shone dimly in the other end of the darkened Winnebago. She could see her aunt and uncle lying side by side on the double bed. Sarah, her mother's sister, and Dan, Sarah's husband, were kissing. They were lying on top of the cover, with their feet towards where May lay in the sofa bed with her two cousins, Jack and Sally. May could see that the two adults were dressed for bed, and they were just lying there together with their arms around each other kissing. May couldn't believe that she was here. She hadn't seen her cousins in several years, but two weeks ago, her Aunt Sarah had called her mother and asked if May would like to go on vacation with them. Her mother had agreed and they had stopped in the middle of the night to pick her up at her house. They were going to drive during the night so that they would be at the camping park before morning. Her mother was supposed to drive down in a few days to join them. Her two cousins, 15 year old Jack and 14 year old Sally, had been sacked out on the sofa bed in the middle of the travel vehicle when she got on board. They had waked up and the three of them had talked and giggled for a while before going to sleep. They had just fallen asleep in their clothes there on the sofa bed together. May was on the right side of the bed, towards the back of the vehicle, Sally was in the middle, and Jack was snoring on the other side of Sally. May had half-waked when she felt the big Winnebago bumping over rough terrain. Shortly after this she had been vaguely aware of her aunt and uncle moving past where they slept to the back of the trailer, and realized that they must have reached their destination. She had just about dozed back off when she heard her aunt giggle. She had peeked to see what was going on and discovered that they were smooching. Her aunt had on a short gown and her uncle had on pajamas. Now as she watched, she saw Dan sliding his hands all over Sarah's big tits, and then she saw him pull the strap of her gown down and take hold of her bare tit. As she watched, she saw him lower his head to her breast.