The movie "Come to your friend's house, young men get fucked girls for free" by the SWITCH studio was "on the shelf" R18 in 2014, which is a sex movie where the whole content is linked together rather than in short segments (the same content but unrelated parts). The "young man" in the title is the most happiest character when his cock is fucked by a series of beautiful girls in more than 120 minutes of the movie.
Talking about the content, I would like to summarize that the male protagonist in the movie takes turns having sex with his sister's friend, then turns to incest with her, then fucks his sister's friend's sister and then goes on, although it's a bit roundabout but in general it's very good, you shouldn't ignore any fucking scenes in the movie, are all attractive.
The actors in the film are: Hitomi Fujiwara, Miwako Yamamoto, Ayumi Takanashi, Sana Mizuhara