Because I had to attend a short summer course for four days, I decided to stay with my sister-in-law. My brother and sister-in-law welcomed me warmly, but my brother-in-law was unaware of a secret... that my sister and I had slept together! The thing is, before my sister Suzume got married, because she was the older sister, she always made me sleep with her.DLDSS-129 My older sister is promiscuous It had been a long time since we last met, but I could see the longing in her eyes when she looked at my crotch. And indeed, as soon as my brother-in-law was out of sight, she rushed to touch my penis. I kept pushing her hand away and ran off. But the truth is, I still remember her body, her big round soft breasts, and the times I inserted my penis into her wet vagina. Just the thought of it made my penis erect, and as I was about to masturbate, Suzume opened the door and walked in. This time I couldn't avoid it anymore, she let me admire her breasts, continuously whispering seductive words in my ear to make me even more aroused. And throughout these four days, whenever my brother-in-law was away, she would come to stroke my penis, let me touch her breasts, and even let me have sex with her vagina!
