[Matsumoto Jikyuuryoku] Haha to Osake Nondara erai Kotoninarimashita

An intoxicated mother in a simple top and panties shares a drink with her son, sparking a heated exchange that quickly turns physical. She lies on a bed, exposing her large breasts as the son penetrates her, shouting that he is inside her while she protests and then accepts the taboo act. The story ends with a promise of guilt‑free sex, sealing their incestuous bond.