This description matches the exact plot synopsis of the Japanese adult video (JAV) titled NHDTA-567: Insidiously of Summer Vacation Parent and Child Molester - Father, Mother, and Daughter Targeted: Campsite, Hot Spring Inn, at the Zoo, released by Natural High on August 21, 2014. It's a censored hentai-style molestation-themed compilation featuring three separate scenarios (camping, hot springs resort, and zoo) where a predatory male teacher (often referred to as a "dirty" or "slutty" figure in translations) secretly targets and assaults pairs of mothers and daughters during family summer outings, without the fathers noticing. The "octopus" reference alludes to tentacle-like restraint and play during the assaults.Key cast includes performers like Tsugumi Mutou, Yuka Honjou, and Shuna Kagami across the segments. An English-subbed version is available on various JAV streaming sites.
