Aika is a very kind sister-in-law, but she looks flashy. However, her revealing clothes make her eyes catch yours. One day, when my brother was drunk, my sister-in-law seduced him, and he crossed the line and had creampie sex with her... After that, my sister-in-law started showing me her sex with my brother, and they even took baths together... Even though he knew it was wrong, he couldn't resist the temptation of Aika's shiny, lustrous black skin, and they had creampie sex again today...