"Well, I figured I wanted one boy that would take my cock anytime I ask him to. That's Kelvin. The other, I want to be able to have with me in three-ways and orgies. And just in case I feel the need to play 'catcher'." Jake put his hand onto Ashley's pussy. "We're going to turn this thing inside out and make you into a hot boy stud."
Ashley stripped naked and stood by the mirror, awaiting the trigger to begin transforming.
"Never seen a naked girl before. I'd rather see you naked, though..." Kelvin moved closer to Jake and laid his blond, curly mop onto Jake's shoulder.
"Patience, dude. This is going to be amazing!"
Ashley looked like she was beginning to do calisthenics. Every round of squats, crunches, curls and other moves were pumping her muscles into much more manly proportions. Soon her chest had lost its female breasts and was flattened into hard pectoral muscles, perched over a delicious six-pack. Her face had become more masculine, with a more pronounced jawline and some faint stubble on the cheeks and above the lip. Her hair had shortened slightly as sideburns formed. Once the initial phase had ended, Ashley was the same height as before, and had the same vagina, but otherwise had become a twink specimen.
The next phase was truly remarkable, something that James had not thought of ever doing before his bro suggested it. As Ashley expanded in size, topping out at 6'4", all focus was on the private areas in the center of her body. The folds of the vagina appeared to be blossoming, much like a flower, and in the center you could see a small, wet, pink cockhead. About an inch of penis had been birthed when a small pair of testicles dropped out of the vagina beneath the new manhood. Once all of the boy parts had appeared, they darkened quickly to a milk chocolate color and began to grow. The lips of the vagina began to close around the base of the cock and disappear into the body, leaving no trace of womanhood.
The new man, Ash, traced his fingertips across the dripping schlong that was now his own hot cock. He wrapped his right hand around his manhood, and within seconds, it had grown into it's full 9" of cock in it's prime.
"Easy" said Jake as Ash tugged on it a little too hard. "Just run your hand up and down the length of the shaft."
Jake felt compelled to give Ash instructions on how to use his new body. He had absentmindedly began stroking Kelvin's 8-incher while Kelvin's mouth bobbed up and down Jake's long, hard 10 inches.
"The pre-cum will make your hand glide easily." Jake was right, and soon Ash was increasing the pace of his jerking off.
"OOH!" Ash stammered out, "that's it, that's awesome!" Feeling a little ambitious and wanting to explore things a little further, he began stroking and kneading his balls with his left hand, continuing to fist the throbbing cock in his right hand. Suddenly, Ash's entire body tensed up, and he threw his head backwards, yelling "AAAAAARGHHHHH! HERE IT COMES!" Just then the big 9-incher erupted like a geyser, creaming Jake and Kelvin with eight loads of hot spunk. Ash's first cum explosion inspired both Jake and Kelvin to respond; they both stood over Ash, who had fallen to his knees in exhaustion, and both boys unloaded their hot, sticky cream all over the new stud.
After the boys showered and put on some hot, new sk8 outfits, they walked downstairs, first Jake, then Kelvin, and finally Ash. As they walked past the other boys watching TV on their way out to the sk8 park, each one of them could feel their cocks rising to attention and pitching tents in their pants at the prospects of new meat.