I'm an office worker at a certain building. I had a simple arrangement with A, the toilet cleaner—whenever I asked, she'd jerk me off. So I used her often. But to me, who looked down on her position as a cleaner, she was nothing more than a convenient sexual outlet. However, her attitude gradually began to change. Even after I begged her to stop, she kept jerking me off, then started pushing further, attempting acts beyond mere handjob. It escalated until she finally snapped, "Cleaners are human too, you know! Stop treating me like your personal sex toy! Now it's my turn to use you!" and forcibly had full intercourse with me.