While my friend was bedridden from illness, I was seduced by his older sister, who was wearing her usual short skirt. Her lustful behavior turned me on, and I started masturbating while reading an erotic manga. Suddenly, she made a move on me and kissed me. Right there, she pressed her tight ass against my erect cock, and I nervously enjoyed sex with her. I'm always turned on by this older sister's naughty behavior.