[LULU-290] After consulting my busty aunt, a muscle instructor, about my premature ejaculation problem, she trained me with JOI ejaculation control, which improved my erection power, and I had non-stop sex with her, cumming inside her over and over again. Yuuna Mikami, with panties and a photo.
I decided to stay at my aunt's house in Tokyo for a few days for job hunting. My aunt, who I hadn't seen in a long time, turned out to be a muscle instructor with an amazing muscular body. When I confided in her, a reliable aunt, about my premature ejaculation troubles, the [JOI] training began. I was instructed on the speed and frequency of masturbation, the time until ejaculation, and whether ejaculation was allowed or not. Through penis training, my erection strength increased and my sexual desire became uncontrollable, leading to endless sex with my aunt where I ejaculated inside her repeatedly!