In this adult stepsibling role-play, our parents remarry and I suddenly gain an incredibly cute, painfully shy stepsister who is easily pushed around. I start harassing her nipples every day—morning, noon, while she sleeps and even in the bath. Before long, she becomes so sensitive that she cums again and again, then starts asking me to tease her nipples herself. She turns into a shamelessly horny woman who can no longer live without it, but at least she has learned to say exactly what she wants: “Touch my nipples.”