I ended up dating my step-sisters due to unavoidable circumstances. There were many reasons for this, but we were all four at the same time! We were having sex every day, sneakily, so we wouldn't get caught! But we couldn't let them find out in this situation, and of course we couldn't be so skillful, so we were caught cheating and in big trouble! Just when I thought it was over, my step-sisters started a harem orgy, using sexy underwear to make sure they wouldn't take me away! If no one will give in, would we be happier if we shared them? We'll avoid ugly fights and have a healthy sex paradise! Is it the best thing to do to inseminate everyone and get them pregnant at the same time?