[SSIS-247] Letting my boyfriend stay near my best friend will eventually lead to them having an affair

A secret sex movie of Izuna Maki, a girl who rents a room with her best friend, and she lets her boyfriend stay with her. They are also used to this, but it seems that her friend rarely lets her boyfriend fuck her, making him thirsty for sex. The girl….. also feels itchy when there is a male living with her but she can’t fuck him, causing the two to gradually develop feelings for fucking and gradually secretly fuck each other without knowing it…..