Tim's idea of a threesome

"Actually, I got a better idea, Dad!".

Two hours later, these two lesbian sluts were draped all over Peter, Walter's youngest son's, bed.

"Son, this actually takes the term father-son activities to a whole new level!" it came Walter's voice from the blonde.

"Hehe, sure is, Dad! Damn, I'm so wet down there..." the read-head Tim had turned himself into cued.

"Not only you, son!" Walter replied.

Just then they heard footsteps on the stairs.
"Ssshh! Remember, no talking!" Tim whispered to his transformed father.
Next the door opened!