Yuuki-san is younger than me, but she's my superior. She's always assertive at work, but she seems to be a lightweight with alcohol. After a drinking party, I helped her and carried her to a hotel... I couldn't resist attacking her when I saw her defenseless, flashing her panties. It seemed she took a liking to my tireless cock and intensely begged for "more"—and she turned out to be a total masochist who loves being fucked. Her sensitivity is off the charts; just playing with her nipples makes her leak juices everywhere. When I blindfolded and restrained her and pounded her hard, she kept squirting and cumming, drooling as she begged my cock to "creampie me..." Yuuki-san, with her female instincts fully exposed, was just too erotic...