A nurse with big breasts, visible even through her uniform, is caring for a patient with her devotion when the patient gets excited and asks her for sexual relief. The Kokoro nurses offer to give him a handjob on the condition that they keep it a secret, but when the patient asks them to give them a titjob with their big breasts, they eventually accept. As the nurse squeezes the patient's erect penis between her big breasts, the excited nurse ends up having secret sex.