After their parents died when she was young, her much older brother worked tirelessly to raise her. By the time she became an adult, however, his mental health had collapsed and he withdrew from the world. Now the 23-year-old sister believes it is her turn to repay her 45-year-old brother. She feeds him, undresses and bathes him, gets his cock hard, and devotedly helps the shut-in middle-aged man ejaculate, offering him her hands, mouth, breasts, and pussy because he gave her everything.