If Jacob was turning into a dog, then what was happening to Henry? He looked down at himself and realized that something was very wrong. His chest was pushed out in the middle, and his arms were covered with golden-brown hair. It looked just like the fur covering MaryAnne!
"Let me out!" Henry grabbed the gate and shook it, screaming at the top of his lungs. No one came, though the shouting seemed to startled the dog. But only for a moment. She nosed the crotch of Henry's tented pants and started licking the fabric. Before he could push her away, the cloth melted away like cotten candy, and the slobbery tongue began working his penis and testicles.
God, that felt good! The intense sensation actually made Henry forget everything else for minute. He arched back, eyes wide and mouth open as MaryAnne sent shivers of pleasure through his body. It wasn;t until the odd sliding of flesh around his shaft made him look down again that he saw he was now fully Great Dane male between his legs.
The slick pink shaft was larger than his human penis had been, as were the hefty balls in the brown-furred sack behind it. Fascinated, he reahed down and wrapped his hand around the shieath and squeezed. It felt incredible! He was dizzy with pleasure, and blind lust was filling his thoughts.
The bitch presented herself to him, and he fell over her, human thoughts no longer in control. He was still mostly human as his canine dick found her sex, but as he thrust in and pumped, he began a rapid transformation.
He felt the base of his new dick swell out into a knot that locked him in the female, felt her squeezing him. Dimly, Henry became aware of his arms and hands finishing up the change into forelegs and paws. Oh, shit! He was turning into a male Great Dane! Scooby Doo for real! But what was really weird was that he wanted it! As his face pushed out into a muzzle, Henry found that he was eager to become the perfect champion stud dog. Was it part of the change, or something he thought as being better than human? It didn't matter. As the bitch milked the last of his seed from his aching, pulsing dog cock, Henry completed the change to Great Dane.