Taking Ben into the bedroom, Marty disrobes before her. Standing in absolutely nothing, Marty begins to explain the odd device and what exactly it can do and has done.
At first Ben is really skeptical and keeps insisting, "The only way you or I will ever get what we want is through surgery and that costs a lot of money. I'm sorry, no machine is that simple where you point and click and poof, what you wanted has come true."
Marty grins and asks in a feminine voice, "If I could prove it, would you believe me?"
Ben, still with a skeptical look upon her face, nods and replies, "Yeah, sure, anything you want. But I still am doubting this one hundred percent of the way."
Marty, still a grinning, pulls up his profile and begins entering commands. Marty saw and knew that his body was mostly that of a thirteen year old girl, so he decided to finish it so that he was complete female. Entering the information, keeping the awareness so that only he and Ben were the only to to know of the changes, Marty hit save.
Immediately Marty was overcome with a twisting sensation that crept all over his body, but mostly centered in and around his lower abdomen, penis and testicles. Before his eyes, his genitalia shrank and folded up. As a pink gash split the area between his legs, Marty could feel something opening and moving around inside. Memories flooded in and suddenly Marty remembered that her name was Martha, but everyone called her Marty. She remembers the first time she got her period about a year ago, the dolls she grew up playing with, being potty trained between the age of two and three and having only met Ben about six months and and how the two have been dating since then.
Grinning, the now female Marty looks at Ben, who replies, "Wicked. Can you do me?"
Marty nods and sitting down on the bed, enjoying the way she now feels comfortable, like she's in the correct sex and gender, she pulls up Ben's profile and the two spend the next hour going over it.
In the end, Ben also chooses to also be thirteen years old, but a couple years more mature then your average thirteen year old. "Like I'm thirteen, but I have the maturity of a nineteen year old." Marty nods at this, understanding because she'd also chosen to make herself really mature.
Stripping, Ben stands naked in front of Marty and the young girl memorizes how Ben looks like a very small breasted the girl. Pressing the button, Marty watches as Ben begins to change.
First to go is Ben's feminine frame. And as that disappears, Ben's chest flattens and then gets slightly broader. Her waist shifts sex and gender, followed by her hips and butt. The last thing to change is the gash between her legs. As it closes, the flat skin in front of her body, just below her waist, begins to first bubble and then balloon outward into a penis and testicles. As the transformation completes itself, Ben grasps his penis and comments, "It's everything I've every hoped for," and giggles a deep, manly laugh.
Marty watches as the shaft begins to get hard and remembering suddenly that Ben had come over because both had wanted to go to the mall and that before that, they'd wanted to try something new, she slides off the bed and begins to fondle Ben's penis.
As it grows harder, Ben reaches down to his pants and pulls out a condom. Slipping the rubber over his shaft, he kisses Marty, who returns the kiss and the two begin to slowly and in a somewhat clumsy fashion of two beginners, caress each other as they lay down on the bed and start to make love to each other, both enjoying it immensely.