Kaori's husband, who is already married, has an adult son. Initially, they lived separately, but recently started living together. The family relationship is good, and they consider each other well. Her husband is older and doesn't have much nightlife, but since they started living together, the frequency of sex has drastically decreased. Kaori tried not to mind, but she often found herself feeling restless. One day, her stepson came home while training, and Kaori saw his massive penis through his tight pants. Doubting her eyes, Kaori secretly peeked at him during his bath and confirmed it wasn't a mistake. Late at night, when everyone was asleep, Kaori went to her stepson's room. She pulled down his pants while he slept, captivated by his magnificent manhood. Intending to sneak back to her room without waking him, Kaori couldn't help but take him into her mouth as she felt him growing harder. Her stepson woke up feeling the strange sensation in his lower body and was shocked to see his stepmother sucking on his penis. However, Kaori, already wet with excitement, pressed her crotch against him and took him deep inside. His glans stimulated her vaginal walls, and Kaori reached her climax instantly...
