"One more thing," said Kathryn.
"What?" asked Nate's Mom.
"In his werewolf form, your son will not be a threat to anyone. Though his mind and instincts will become more bestial, he won't become a bloodthirsty monster like in the movies. So you have nothing to fear."
"Oh, that's a relief. And Kris is with his brother, so he can watch over him."
At that moment, Kris and Nate were in the park. They weren't able to find Kris's friends, but they saw an abandoned Frisbee and in moments they were playing an intense game of fetch. After about an hour, Kris was exhausted and Nate had bitten the Frisbee to pieces. They sat on the grass and stretched out. Kris scratched Nate behind the ears, and Nate panted heavily, then licked his brother's face.
"Hey! Cut that out boy!" laughed Kris, wiping off the drool (and accidentally getting some in his mouth and swallowing it). He gazed at his furry, mammoth brother, with his noble maned head and long snout, from which a long canine tongue protruded. Kris had always wanted to have a dog, and now he had the coolest dog in the world. Except that Nate was not just a dog--he was half-man, half-beast, and Kris gazed at his brother's fur-covered muscles in wonder.
"It must be so cool to be a werewolf," said Kris, who was in the midst of puberty and dreamed of being as tall and well-muscled as the classmates he saw in the school showers. But Nate was even bigger than them!
At that moment, Nate lay on his back and stretched. Kris leaned forward and rubbed his furry belly. Like any dog, Nate loved this, and panted happily. Lost in bliss, his canine penis rose slightly from its sheath. Kris stared and gasped.
"Wow! It looks so weird. So red!" He looked closer at the canine shaft, and his hand moved closer, almost wanting to touch the strange, bright red, veiny surface. And then his fingers grazed the werewolf's cock, and then they grasped and felt it. Nate, whose mind was almost entirely canine, didn't mind the attention of the nice young handsome human.
Kris was transfixed by the bizarre enormous phallus. He tried putting his hand around it, and as he did so, more emerged from the sheath. It was so warm and veiny, like a thick crimson spear--bigger than anything Kris had seen in the lockerroom. He began lovingly rubbing Nate's magnificent wolf cock.
"I wish I was a werewolf too" sighed Kris. Suddenly he had an idea--if you could become a werewolf by getting scratched, you could also become one by ingesting the werewolf's blood...or his other bodily fluids...
He began actively masturbating his werewolf brother, furiously rubbing the red rocket. After a few minutes his hand was sore. "Common!" he shouted, "When does the sticky stuff come out?!" At that, the werewolf pulled away, stood up, and shoved its cock in Kris's mouth.
He gagged in panic, but as he inhaled, he found a rhythm, and started to savor the beast's member. He felt it twitch in his mouth as Nate erupted. The werewolf threw back its head and howled as it pumped cum into Kris's mouth, jets of the watery spunk gushing down his brother's throat. Exhausted, Kris released his lips and fell backward, semen running from his lips. He swallowed the salty cream and waited for his body to become like his brother's. He even howled along with him, hoping this would speed the process.
Then he noticed a certain heavy feeling in his shorts, as if his balls were expanding. His T-shirt then became tight, and with a burst of strength that surprised him, he tore it off in one swipe. Lifting his arm, he watched the tufts of hair in his armpits double in size. His chest began tingling, and his abdominal muscles grew more defined. From under the waistline of his shorts, a trail of hair snaked upward, past his belly button. He had taken off his shoes to play barefoot on the grass, and now he watched his already large feet lengthen from a size 9 to 12, while his leg hair doubled in thickness, sweeping down to the tops of his feet. The peach fuzz on his face started thickening into stubble, while the bones underneath shifted into harder, manlier lines. His nipples grew momentarily sore as the pectorals behind them swelled, and his biceps throbbed with added muscle. Kris grinned at new, more mature body, waiting for the first signs of fur and fangs. And then...