Derrick stared at the group of horny wolves. Was becoming a wolf really worth all this? Did he really want to go through with this? Derrick was trying so hard to concentrate on making a decision, but the horny scent that was coming from the four wolves was growing stronger every second. He looked down and saw that his cock had become fully erect and leaking pre, begging for release.
The scent had become overwhelming. Derrick got down onto his hands and knees, presenting himself to the four wolves. "Alpha, I submit myself to you!" he cried. "Please, make me a member of your pack!" Almost instantly, two of the wolves stepped forward. The two moved to Derrick's sides and stuck their heads under him. Derrick was unsure about what was happening at first, but his questions were answered when he felt two slobbery tongues begin to lick at his cock and at his balls. Derrick inhaled sharply as a foreign sensation raced through his body. The teen had jacked off before, but this felt NOTHING like he was accustomed to. The two canines ran their tongues up and down the sides of his member, making Derrick let out a soft moan.
As the other two wolves licked Derrick's cock, the third wolf came up to Derrick and put his paws on his shoulders. Before he could respond, the wolf shoved his large canine member into Derrick's mouth. The taste was like something he'd never tasted before; it was delicious! Derrick began sucking the wolf's cock, savoring the delicious taste of it's cock. He ran his tongue up and down the animal's cock, eagerly awaiting it's release. Sure enough, the wolf let a huge amount of cum out of his cock and into Derrick's mouth. Derrick swallowed it all and made sure he didn't leave a single drop on the wolf's cock.
Then, Derrick moaned loudly in pleasure as he felt something wet begin licking his asshole. Turning his head, Derrick saw that the alpha had stuck his muzzle in Derrick's ass and was currently licking his asshole. He relaxed and let the wolf push his tongue in a little deeper. After a few minutes, the alpha stopped rimming the teen's asshole and began barking. But what surprised Derrick was that instead of hearing barks and having to translate it, he could hear the alpha speaking.
"Brothers," the alpha said to the other wolves in a slightly deep voice. "Today we will welcome Derrick into our pack." The alpha looked at Derrick and said, "Derrick, do you join our pack of your own free will?"
Derrick nodded, still sucking wolf cock.
"Do you promise to listen to the orders of your alpha?"
Derrick nodded again.
"Do you accept that you will be a wolf as long as you stay on this island, and you will only change back once you leave?"
Derrick didn't hesitate for a second as he nodded eagerly. The alpha chuckled and put his front paws on Derrick's bare back. The large head of his member poked at the entrance to his hole. "Then prepare to change boy."
The alpha wolf shoved his large member into Derrick's virgin ass, causing his to nearly scream in pain. The member was so large, it felt like it was tearing his insides apart. The wolf's cock began to hammer Derrick's prostate, eliminating all traces of pain and replacing everything with pleasure.
A strange sensation began to spread throughout Derrick's entire body, starting at his feet. The wolf who had his cock in Derrick's mouth pulled away and allowed Derrick to watch his transformation. Derrick's feet were beginning to change shape and become paws. One of his toes receded into his foot on both feet, and the bottoms of his feet were covered with black pads. Derrick's hands began doing the same thing as his feet, and he watched as grey fur began covering his paws and growing up his legs. The fur spread up his ass, and he winced in pain as he felt his tailbone begin to extend into a large tail. The fur spread around his groin, and Derrick felt his dick become enclosed in a large sheath. As the two wolves that were licking his once human member continued licking, Derrick's cock emerged from his sheath, but it had become pink and fleshy, and the tip was slightly pointed. Derrick moaned quietly as he released a small bit of cum, but the moan became incredibly loud when his new cock began gushing wolf semen that his new balls were producing. His hips locked him in the quadruped position, as the changes got to his head.
"Yes boy," the alpha wolf growled as he thrusted into him harder. "Change....CHANGE!"
Derrick's mouth and nose extended into a canine muzzle as his tongue extended and his teeth sharpened. The wolf that had it's cock in his mouth put his cock back in Derrick's mouth, and Derrick began sucking eagerly once again. His eyes changed from a calming blue to a brilliant gold as his hair changed into fur. His ears migrated to the top of his head as his senses increased beyond those of a normal human's.
The alpha male thrust into Derrick one more time before sliding his large knot into the once human's ass and releasing it's seed into him. Derrick released one last load of lupine cum before the three other wolves backed away.
"Welcome to the pack Derrick," the alpha said.