Drinking an aphrodisiac and being 100 times more sensitive, mother and son seek each other like crazy, intensive creampie sex

Koji still has passionate love with his wife Chisato, but recently he hasn't been getting too good at getting an erection and is starting to feel anxious. Koji, who doesn't want Chisato to be abandoned, decides to make up his mind and rely on aphrodisiacs. However, while Koji is away, Chisato and his son accidentally drink a drink containing an aphrodisiac. Even though she hasn't even touched it, the deep vagina begins to throb and the cock that stands high in the sky. The two are gradually moved by the sudden heat that runs through their bodies and begin to enter a forbidden relationship.