My new stepsister 'Hinata', whom my father married recently, was initially quite sassy and I thought there was absolutely no chance we could ever get along. However, after a certain event took place, our relationship gradually became more intimate. One day, she found out about my girlfriend and made a surprising offer - "If you can promise that you won't be able to penetrate me since you have no experience, then why not let me use you as a practice partner for sex?" From there on, they started off by rubbing their genitals together, eventually progressing to inserting just 1 cm inside each other, followed by entering only the tip, until finally reaching full intercourse. As they indulged in the intense pleasure of sex, Hinata's incredible body served as the perfect training ground for him, leading them both to lose themselves in the passionate act!