I was always mocked by my mischievous gyaru stepsister, who'd tease me with "Just lose your virginity already, lol." But then suddenly, she forcefully penetrated me. An intense, pounding rhythm began—so overwhelming it nearly made me pass out. Like I was in a trance, I kept climaxing over and over, reaching a total of 42 orgasms. My body trembled uncontrollably, drenched in sweat, yet each time, our roles reversed as my stepsister dominated me with sheer strength. The heat, the intensity—this was truly an ecstatic, mind-blowing experience.