[Iaidou (Kakizaki Kousei)] My ejaculation depends on you [OkayTranslations]

A mortal man offers his body to a fanged, scythe-wielding demon reaper and begs her to pleasure him to death—and she takes the job with gleeful cruelty. She wrings the 'first shot of freshly squeezed semen' from him between her soft soles, rides him with dripping, impatient hunger, and buries his face beneath her enormous ass while teasing that suffocation would end their fun too soon. His only hope is to make her climax with all his might before she squeezes him completely dry, turning every round into a lethal contest of stamina and surrender.