The younger brother-in-law is hospitalized at the hospital where his beautiful sister-in-law works. One night, while she's wiping him down, he's rock hard! The hand gently wiping his embarrassed penis gradually turns into a handjob. Neither of them can hold back any longer, and they frantically devour each other's genitals. She straddles him, thrusting her hips as she pleases, moaning in ecstasy as he thrusts into her from behind, and finally, she stifles her cries as he ejaculates inside her. *This work depicts a situation where the characters are unable to make a sound...