When my companion's sister came to stay, I couldn't resist the temptation. Our stepfather was away, and the heat between us was palpable. We indulged in our forbidden desire, unaware that my stepdad had returned. He caught us in the act, his eyes filled with disgust. But then, something strange happened. His tone softened, and he began to enjoy the show. He joined in, turning our taboo tryst into a wild, unforgettable experience.
