My brother is married and lives with his wife in my parents' house. However, my brother doesn't come home until late at night or dawn because of work, and my brother's Sumire waits patiently until late at night. Seeing her like that, one day I will fall in love with her and confess my feelings to her, but she will naturally refuse... However, my brother doesn't come home on Sumire's birthday either, and I will embrace her alone. We have sex over and over again until the morning. And I cum inside her...