In part one, the older sister went into her younger brother's room to show off her engagement ring and share the happy news of her upcoming wedding. Little did she know that her mischievous younger brother not only didn't congratulate her but also had the perverse idea of mixing an aphrodisiac into her orange juice. The intense heat and restlessness in her body were immediate symptoms, and of course, only her brother could help her satisfy this extreme arousal.
In part two, after bragging to his sister that he had just bought a bottle of libido-enhancing pills, the younger brother came up with the idea to test whether it was as effective as advertised by persuading his sister to try them. After she took them, shortly after, she hurriedly ran to her room to masturbate to relieve the effects of the pills but forgot to lock the door. Her brother happened to pass by and quickly used his large penis to help his sister enthusiastically.
Lastly, the story of the older sister calling her younger brother over to borrow money because she had been unemployed for too long. Seeing his sister in a short dress looking very attractive, the brother couldn't control himself and came up with the crazy idea of secretly adding an aphrodisiac to her orange juice and making her drink it. As expected, shortly after, she writhed and demanded that her brother help her relieve herself.
