Zack came back upstairs and looked at her daddy. "Come sit on Daddy's lap and we'll have some REAL fun!". Zack obediently and seductively climbed up onto her daddy's lap and wrapped her arms around his neck. For some reason seeing his son's cock swell up made his willpower almost non-existent. All she wanted was her daddy right now. Nothing but daddy mattered. Please daddy. Love daddy. FUCK daddy. Fuck daddy hard. Fuck daddy until we cum. Fuck daddy until I have babies in my tummy. While Zack's mind was repeating these thoughts over and over, Mason was kissing his father's little girl lips. Their tongues wrestling and his going deep down her throat. His hand were caressing her legs, thighs and ass. He loved how her thighs and ass were almost double the size of an average 11 year old girl's yet still had the bouncy tightness of youth. Her waist pulled inwards more so an average 11 year old girl's as well. He decided it was time to make sure this fantasy never ended. But to do so he would need to break his father's mind. Make him CHOOSE, to make him WANT to be his little obedient, slutty, childish daughter forever. "Alright dad, if you want this pleasure to continue, then you'll need to take the initiative. Put my cock into your little girl pussy, and as you do, beg me to make you my little girl. Scream out acceptance that I am your daddy, now and forever!" As Mason said this Zack snapped back to reality, he needed to choose to change back....but, did he have the willpower, the desire to do so?