The 4-hour movie Bad Brother, Midnight Fucking Her Friend by Hunter Studio, which was released in 2016, tells the story of a young man and his sister's friend.
In total, there are 5 parts in the movie, the overall content is the same: The sister took her best friend home to play and sleep overnight, that night was a long time with ... her younger brother when the boy had to "work" hard to... "serve" the young woman who has just arrived.
The director, perhaps because he was afraid that viewers would be bored when every video was the same, added a new content called Play Some, and the participants were two sisters(incest) and her friend.
The main actors are: Madoka Hitomi, Ayane Suzukawa, Shino Midori, Mayu Satomi, Misa Suzuka, Airi Mashiro