Spending a week of fully erect and ejaculating sex with a cold, busty nurse - Usami Midori FJIN-170

I've developed a strange illness: if I don't ejaculate at least once an hour, I'm struck by a severe headache. My personal nurse is a somewhat arrogant woman named Usami. She's incredibly erotic at heart and possesses an exceptionally voluptuous figure, making me her ministrations every day. Although she'll insist, "I didn't squirt...", she's actually more sensitive than anyone else. She'll shyly say, "Ah, my cock's going in..." while gradually becoming immersed in this intense, reversed-position sex. From her displeased expression to her limp, ah-hee-like face, everything about her captivates me. Faced with her allure, my forbidden carnal nursing life begins!