Simple plot idea. Set in a jail cell or wardens office. Basically a warden of a prison notices an inmate get visitation from his daughter. He thinks shes hot af! This prison has NO conjugal visits! So he devises a plan. He will let the inmate fuck his daughter if he lets him fuck his. The Wardens daughter is a bit of a slut so she is down to fuck the inmate who shes thinks is hot anyway. The inmates daughter is the opposite. She is shy and unsure about fucking some stranger. Her dad is also unsure, but he hasnt had pussy in years since hes locked up. He reluctantly agrees and convinces his daughter to do it. "Do it for daddy baby, you don't know what its like in here!"

So we get your basic DS setup. Half way through the perverted warden tries to get the inmate to feel up his own daughter. They both dont want to really touch each other but the Warden reminds him how much power he has. He also says if they fool around for him he may bring a new girl for him to fuck every week! He really just wants to see how far they will go, plus he gets off on it. After seeing them go further and further crossing the taboo line, his own daughter gets turned on and grabs the wardens cock. "What do you say dad?" You can imagine where it goes from here! ;-)