[MOPP-093] I've been watching from afar for years as my slutty, devilish girlfriend, who loves masochistic men, plays with my anus. (Censored)

Three months ago, my classmate from school days, Machi, was transferred to my workplace by chance. I have witnessed her secret several times. The first time I saw it was when I was in the same class as her... Then, some time after graduating, I saw it in my friend's room... Since then, my mind has been filled with images of her happily blaming a man. I want to have my anus stirred up like that and be violated with a strap-on! My perverted desire to have a female orgasm is throbbing and raging, and I can't stop fantasizing...!