彼女の親友のAV女優、‘河北彩花’を一生分ハメ尽くした年末の奇跡 （ブルーレイディスク） (1970)

Hajime has a girlfriend whose best friend is Saika Kawakita, a well-known AV actress. He has a crush on her and even masturbates to her videos, but that’s pretty much it. However, the situation takes a wild turn after his girlfriend cheats on him, and Saika feeling pity for him reaches out and gets closer to him. Good stuff.