[horonaminZ (horonamin)] Aru Tenisha ni Yoru Isekai Monster Musume Seitai Kenkyuu no Tehai [Kumoku]

Two playful monster girls, one long‑haired and one short‑haired, linger in a desolate ruin, impatiently awaiting the arrival of a lone human male. When the scylla creature finally appears, its multiple tentacles deliver a simultaneous handjob and oral stimulation, driving the male into a frantic climax. The scene ends with the male’s shocked reaction to the dirty, invasive pleasure, leaving the outcome unresolved.