Hajime visits his brother and his wife's house to borrow a formal dress from his brother, but he loses his mind when he is seduced by his sister-in-law Hinako's careless, see-through panties and plump ass. Despite knowing he should never lay a hand on her, he finds himself fucking her over and over again with her sexy, glossy ass, and ejaculates his sperm repeatedly into her easy-to-give-birth-to sexy ass...
"I'm sorry, big brother! I couldn't resist my sister-in-law's ass, so I took advantage of the fact that we have the same blood type and indulged in creampie fun..."