28-year-old Yumi works at a call center and has a shy personality around men, with no boyfriend for the past five years. When a man she just met starts touching her beautiful fair skin, she giggles nervously from tension and embarrassment, but her body gradually begins to warm up. As her skirt is lifted, her tightly exposed buttocks face the camera, and her erogenous zones are lewdly stimulated. In this state, she grabs the man's clothes, moaning cutely as she writhes, saying, "I'll make a sound..." When licked, she can no longer suppress her pleasure, and soft moans begin to escape. Her panties are removed, revealing her vulgar pussy, drawn into the man's skillful techniques. Her embarrassment slowly transforms into pleasure, and at climax, she becomes so wet that she leaves a stain on the sofa. As a thank-you for the pleasure, Yumi performs oral service on the man, earnestly trying to pleasure an enormous cock too large to fit entirely in her mouth. Then, for the first time in five years, a real cock penetrates her vagina. Gazing at the man, Yumi's expression shows her embarrassment completely replaced by pleasure, reaching orgasm with sweet, needy moans. Screaming, "Ah!! No!!", she continues moaning without lifting her face from the intense piston-like thrusts of the huge cock.