Why?

"Why won't my dick get hard anymore? I don't feel anything but your big fat dick in my hole. God it feels good..." The boy pieced together his thoughts as he felt his mind accepting his true purpose.

"This hole is a proper pussy now. Filled with the dick it always needed. Squeeze that cunt on me while I show you what a real dick can do." The man replied as he enjoyed the silky wanton depths of the now needy boy.

"As for that little limp dickie..." He looked down with the boy at the soft pink tiny dick cradled in the boy's hand. "That is now an adorable little clit. Soft, unimportant, and never even used as a proper dick... just like it was always meant to be. Don't worry about what you could never, should never, and will never have. Feeding your pussy is all that matters now."

The man grinned as he felt the pussy massage his dick as he spoke; watching the boy's fear and realization build. 

"Speaking of feeding that pussy..."