NDRA-094 Young man enjoys secretly having sex with his girlfriend's mother

Today my girlfriend invited me to her house. The first time I met her mother, an extremely beautiful and gentle woman made me unable to take my eyes off her body. While Ioka-san was still sleeping, I lied to my girlfriend about going to the bathroom so I could peek at Ioka-san's underwear. Little did I know that she also knew everything. When I went to take a bath, Ioka-san immediately came in and wanted to bathe me. Her body was wet, exposing almost all of it to me. Her soft hands made my cock quickly stand up. And our secret relationship started from there. Even though we know it's wrong, we can't help but secretly fuck each other even when our girlfriends are nearby...