SAME-186 My annoying but incredibly cute and cheeky younger stepsister, who came into my life when my mother remarried, became obsessed with me after I crossed a line with her. Saito Amiri

My mother remarried, and I ended up with a bratty younger stepsister. She acts all sweet and well-behaved in front of our parents, but the way she looks at me is clearly condescending. It annoys me, but her face is the one thing that’s adorable. One morning, after everyone had left, I was secretly pleasuring myself with my stepsister’s underwear when she came back home to get something she had forgotten and caught me…