I Happened Upon My Girlfriend’s Little Sister As She Came Out Of The Bathtub, And There She Was, Without Her Bra On, And I Couldn’t Control My Erection – Hikari Aozora

Directed by Easy Matsumoto

This guy lives with his girlfriend in Tokyo. One day of summer, her younger sister Hikari comes to stay over and she messes everything up like a tornado. This schoolgirl despite looking innocent, she is extremely lewd and has stamina for years.