I had thought there was a considerable age gap. They lived in one of the estate cottages. Mrs Johnson did the cooking and ran the house.After lunch we...decided to explore the house. It was large, but a lot of it was taken up by locked rooms. We had been shown to the largest bedroom for our own use, which seemed to be the only one with an en suite bathroom, hardly surprising as we discovered just how 'original' the house was. On the ground floor, besides the entrance foyer, from which the stairs. Paul relaxed as he did the post car trip stretches, and found he was looking forward to a quiet winter break. He was now halfway through his Junior year at an engineering college, and the classes were intense. Paul gave a final sigh as he finished stretching before he grabbed his bags and headed inside."Hey!" he heard a female voice yell from the kitchen, "that must be Paul!" And presently, as if embodying a galloping horse, his sister barreled around the corner and leapt. When Paul came home. She felt ashamed yet so vulnerable. It felt crazy to not be supporting her weight at all. He held her up completely, well except for the wall.Suddenly she heard his voice say, "Use your body Holly. Wrap your legs around me. Put your arms around my neck." She timidly did as he asked as she felt him exert effort to thrust in and out of her. He continued to whisper in her ear, "Move you body and hips Holly. Make love with me. Relax, feel it, experience it."For the next many minutes it was. As he moved in and out of her, his own body showing signs of orgasm, Tara was transfixed. When he finally climaxed, his body sweaty in the sun, Tara was shocked back to reality.She had just watched her neighbors have sex. Out in the open. Where anyone could have seen them. Including Tara’s c***dren.She raced back into the house and called her husband. She left a voicemail asking him to call her as soon as possible. He would know what to do. He had certainly dealt with these kinds of things.