You’re chilling with your girlfriend and your stepsister is in the house and she keeps on hitting on you too. Will you try to find a way to fuck them both? Sneaking from one to the next. Or will you try to bring them together for a 3some? It’s entirely up to you. You decide how the story progresses. Every action you make will have a different consequence. Make the right choice and end up deep inside both of their holes. Make the wrong choice and end up not getting pussy at all. Good luck!