I stayed at my older brother's house during summer vacation. My sister-in-law Chisato, a former news announcer whom I've always admired, was as kind and beautiful as ever despite our long separation. On the day I arrived, Chisato gently sucked my injured finger. Ever since that night when she seduced me into creampie sex, she's been constantly tempting me even with my brother nearby. She flaunts sex with my brother right in front of me, then immediately afterward plays with my cock... And today, another bare creampie session again. Each time, I feel a sharp pain in my brother's eyes. Torn between Chisato's tenderness and her relentless seduction, the tension keeps building unbearably.