Born as siblings with a significant age difference, the two of them. The brother was known for being 'good at taking care of others,' but in reality, he had an obsession with his sister's buttocks and manipulated her into liking him to satisfy his twisted desires. However, the sister began to understand that their actions were wrong, and sensing this, the brother became even more eager for the forbidden sweetness of incest. The sister, restrained while wearing her gym uniform, was photographed thoroughly, including her buttocks and private parts. Her overly developed buttocks spilled out from her panties, and as she was caressed, she bore the stains of their illicit act. They greedily kissed each other's lips, and ultimately, she accepted his penis.
