A beautiful and serious nurse named Airi finds herself unexpectedly kissed by an elderly patient under her care while she was administering medicine. The potent pheromones in his saliva ignite a fiery passion within her that can't be contained. As sweat drips down her body, she gives in to the pleasure of both the drug and his hard cock, seeking release at any cost. Her pussy becomes soaking wet from the pheromone effect, and his erection grows larger and harder due to the same influence. They engage in intense fucking until they reach climax together. Overwhelmed by the power of the pheromones and the thrill of being dominated by this older man's cock, Airi succumbs to becoming a sex slave willing to accept anything - even creampies!