With my father going on an overseas business trip and my mother accompanying him, I ended up staying at the house of my aunt, who lives alone while her husband is away on a separate assignment. I used to find my gloomy and plain aunt difficult to deal with, but I secretly felt aroused by her hidden huge breasts and the defenseless moments she occasionally showed... Then one day! My aunt accidentally sent me an incredibly erotic selfie!! Could my plain-looking aunt actually be having an affair!? With me holding her weakness, she became completely obedient! Whenever I asked, she would give me a blowjob, let me massage her soft tits, and suck her cute nipples as much as I wanted!! Of course, I wouldn't let her complain about penetration or creampies!! As the days of nonstop fucking continued... my aunt gradually became more proactive!? Was I the one underestimating an adult woman's sexual appetite!? She turned into a limit-breaking, super-horny slut who demanded sex day and night, until my cock couldn't get hard anymore and my balls were completely drained of cum! Could it be that the erotic photo she sent was actually...!?