Steps in Sin: Brother's Hand, Sister's Grip - by Cassandra Mile

When college grad Mia moves back into her father’s luxurious home, the last thing she expects is her new stepbrother Jax — a cocky, tattooed ex-fighter who walks around like he owns the place. Their parents’ marriage forces them under the same roof, where every shared glance crackles with tension. What begins as sharp banter and stolen stares quickly spirals into something far more dangerous. One quiet evening, Mia catches Jax in the living room, hand wrapped around his thick cock while loud step-sibling porn plays on the big screen. Instead of shock, she laughs — and boldly joins in, turning his solo session into their first risky, hands-on encounter. From that moment, the game is on. Sneaky handjobs under family movie night blankets. Filthy whispers and mutual touches in the kitchen, shower, and by the pool. Every stolen moment pushes them further, the constant risk of getting caught only making the heat between them burn hotter.