KSBJ-217 — My Younger Brother's Wife Was A Nymphomaniac At Heart... Azuma Rin

My younger brother's wife, Rin, brings a man over to my house while her husband is away on a business trip and commits adultery. My brother doesn't know this, but she's a nymphomaniac at heart. Her lust has started to reach me as well. At first, she enjoys showing me how she masturbates, but her actions escalate! She shows me how she has sex with her lover, and finally she comes to my bedroom at night...