I've been putting in the effort to educate my younger stepsister in the art of sexual riding. She's a real looker, with a voluptuous body and a pair of impressive assets. I've been patiently guiding her, teaching her the ropes, so to speak. Recently, she's been yearning for me to climax inside her, specifically on her lower region. I've been giving her what she wants, and it's been quite the experience. She's a natural, really getting into it. I've even taken her from behind, exploring her backdoor as well. It's been a wild ride, but I'm enjoying every moment of it. She's eager to learn, and I'm more than happy to teach her. This is one amateur lesson that's proving to be anything but dull.