Mitch sat there, thinking about what he should tell Sean to do with Reg. The very thought of Reginald made him shiver with excitement and the need to be mounted by him. This caused his tail to wag vigorously.
"Just have him put Reg in my room and leave." Mitch shouted to his friend on the other side of the door.
He heard his friend's footsteps walk away. Mitch's room was right across from the bathroom, so it shouldn't be too hard for him to get there without being seen.
He then heard the sound of his room's door opening, and then closing. There was a sudden knock at the door. It was Sean.
"Hey Mitch, can I get my money now?"
Mitch rolled his eyes when he heard this. "You'll get paid at the end of the week. now beat it!" Mitch growled back to Sean.
"But Mitch, I want my-"
"BEAT IT!!!" Mitch barked back to Sean.
Mitch heard Sean scurry away. Good, he thought.
Mitch quickly got up and slowly opened the bathroom door. He peered out. No one in the hall. He then stealthily walked across the hall and went into his bedroom. When he turned around after closing and locking the door, he saw Reg. His female parts instantly went into overdrive. He wanted to be Reg's bitch so bad. Reg looked back at him, confused of the new smell coming from his master.
Mitch went on all fours and presented himself to Reg. "Come here boy." He whispered to Reg. Reg's member was fully erected as he slowly walked up to Mitch, sniffing his asshole. Mitch then began to think that this may not be the best for him when Reg mounted him.
In an instant Mitch exploded with pleasure. His penis erected from the pleasure he received. Reg pumped into Mitch for almost 20 minutes. After things settled down, Mitch felt a twinge of pain in his ears. He jumped up and ran to the mirror. As the pain continued, his ears grew longer, and taller. They slowly moved up the side of his head as they formed into two nice Collie ears, covered in a creamy-brown fur. He tried to move then, and they did move. This caused his tail to wag happily.
He still was looking at his reflection when...