father's lover

One afternoon, my father had a secret meeting with his mistress, Yui, at home. However, her son Takashi, who was supposed to be working part-time there, returns home. Takashi, who was around that age, got horny when he saw Yui's sexy appearance and enjoyed her reaction by playing naughty tricks on her. Then, when she sees that her father has fallen asleep on the sofa, she takes bold action without suppressing her desires...