In your sleep,you could hear Dukes voice "Put the Collar on Put the Collar on"
It soon became the dominant thought in your mind until you couldnt resist anymore and finally closed the collar around your neck.
The changes started again soon you were again a female dog.
"Yeah thats a good bitch"Duke said seemingly content with what was happening"Now get up and turn around so I can fuck you"
You obeyed without resistance it was like in trance like you were watching what was happening from far away
Duke mounted you and fucked you it felt so good as he finally shot his hot load of cum into you
Then it all faded to black
Duke looked at you as you were now sleeping again in a dreamless sleep,content with his work
The collar around your neck changed into one matching his and a new collar formed in front of him
"So and now its time to invite you buddy Dave to join the fun"with this he grabed the new collar and left the room