Dan felt his butt and anus being pushed apart even further and the anal thermometer was in a good 3 inches. Kat walked over to Dan's face and smiled "Mmmm don't you like being a little doggie?" Dan was calculating how fast he could break Kat's neck and figured out he wasen't fast enought
After a long minute he felt the doctor pulling out the thermomether out of his anus. "His temparature is fine, nothing to worry about" Steward pronounced while he was examining the thermomether
Dan was gasping from pain. Although he looked like a dog for the doctor his rectum was that of a human and more sensitive.
"Well i am glad to hear that, it would be such a bad thing if i had an ill dog" Kat chuckled while she was doing her best not to laugh.
"Well what next on you list little lady?" the docotor asked.
"I am kind of worried about his development. How should i put this, the other dogs of his age are more developt as he, is could you check him please?" Kat was glintering
"How old is the dog then?" Steward asked. "Around 3 years, ofcourse it's nothing bad but.." Dan's sister mumbled
The doctor walked to Dan "I understand madam we could do a check up"
Dan who was only guessing what that meant. It was certain it would not be something pleasant.
Steward walked behind him and without a warning Dan felt cold hands grabbing his balls. Dan rose up ready to jump and bite the Docotor but then he heard Kat in the background. "Maggot,Maggot,Maggot" Dan looked to Kat, she was even spelling it in the air.
Then he felt the doctor probing his balls. Dan who still had his human balls and cock was ashamed of himself. The stimulation was to much. He got an erection and for the eyes of the doctor it was a dog penis, but for his sister it was a large human erection. Kat found it very amusing and was no thinking about helping him.
Dan was thinking how he could get out of this mess. He suddendly felt cold hands groping his cock and hands examing evevry bit of it.
"So far I can see here,he is above average. I have to weigh it to be certain "The doctor walked to his shelves and came back with a scale. He let the balls of the dog rest upon it's surface.
"Now i am certain that he is not below avarage" The Doctor said. Dan was hoping he was finished now and could go home, he became a little cheerier
"That great news Doctor, I was so worried." The innocent face of Kat was speaking, she was acting like a Pro.
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