This guy finds a strange case that was left by his father. Inside it, there is a weird machine. He invites his friend over to help him out. They press a button and get teleported to another dimension. They meet the father, who tells them that in this dimension, they can control minds. Together, they go into a bedroom. Here, they see their two stepsisters in lingerie playing together. The crazy professor uses his power and takes full control of their stepsisters. He gets on the bed and takes his cock out. The blonde starts licking and deepthroating his fat cock. Then, the other teen babe does the same. Is this truly the greatest invention ever? Two naked girls took turns licking his balls and sucking his cock. The guys watch everything in shock. The black haired stepsister jumps on his cock. She moans and starts humping his cock faster and faster. The naked girls start kissing each other. Now the blondie is hungry for his cock. She gets on top of him and strokes his cock with her tight pussy. He has never pounded a pussy this hard before. The boys just watch in disbelief. The naked girls then bend over and give their ass to him. Two teenage wet pussies are dripping wet for his cock. He destroys one pussy from behind while the girl is licking her friend’s pussy. The guys never saw anything like this even in porn. They get hard even though these are their stepsisters. Their moaning and their small asses getting pounded is too much to handle. The man then cums all over the blondies pussy. The other step sister goes down and opens her mouth. She catches some of the cum in her mouth. This machine truly has some insane powers. The stepbrothers need to understand how it works and use it with their stepsisters and even stepmoms! With endless possibilities now at their fingertips, the guys set out on an incredible, fucktastic, hardcore swapping journey.