Josh just laughed when he saw the look on Marco's face. He enjoyed having this kind of power over him, and then decided to look for something even better to try.
Then Josh came across a section of spells which were categorized as "swap spells" and when looking through a list of body parts, he came across the spell listing for swapping cocks.
"Hmmm interesting... I wonder what would happen as I try this?" he said out loud. Josh read the spell and then set the book down... Waiting to see what would happen next.
Marco gasped as he saw his enormous cock as it suddenly stopped comming and rapidly began to shrink in size. Within seconds, his mighty manhood had been reduced to a tiny, baby-sized dick!
"Hey dude! Where did my thingy go? What did you do to me?" Marco shouted back at Josh. Just when Josh wanted to answer, he felt a warm feeling coming over his groin.
"Oh oh... I had better take of my pants and underwear... fast..." Josh said, as he stood up and quickly pulled off his pants and his underwear. Marco looked at his tiny boy cock, which looked normal, until...
"Holy cow! It's growing!" Marco exclaimed. Josh closed his eyes and smiled with pleasure as his tiny cock began to grow longer and thicker. Within moments it had become about 9 inches long and was over an inch in diameter!
"Yeah! Now I'm the one with your big cock!" Josh said, with a huge smile on his face. Marco's jaw dropped wide when he noticed that his cock had been swapped for Josh's...
"Give me back my cock!" he shouted at the little boy with the huge endownment.
"Not so fast, Marco! I like this... It feels so good. What else can I take away from you?" Josh said, as he grabbed hold of the book.