A little brother returns to his parents' house after a long time. He is greeted by his sister and they have a great time talking about old times and love in the living room. They drink together and start talking about adult things. Eventually, the sister gets drunk and falls asleep. The little brother is concerned about his sister, but he is aroused by her sleeping figure. He sits next to her, smells her scent, and starts masturbating. Eventually, the sister wakes up and is surprised to see her brother clutching his dick next to her. The brother apologises frantically. Seeing his little brother like that, the sister decides to help him masturbate without the family finding out. The little brother asks his sister to lick his tits, show him her pussy, let him lick her pussy, and do various other things. The kind sister accepts her brother's requests. The sister gradually gets aroused and starts to scream, but she suppresses her voice so the family doesn't find out. The little brother says he wants to cum with her, and they start. The little brother inserts it without thinking. The sister is unable to make a sound and is creampied.