Matt decided to open the penis pump box first. Even if it was just a prank, Matt did feel somewhat underwhelmed by his groin. Although his penis was certainly not small, it wasn't large either, hardening to a modest 5 inches. Matt was mostly self conscious about his soft size however, since he was a grower, and when not hard, his penis shrunk to an even smaller 2 inches.
Opening the package, Matt pulled out a long tube. One end had a cushiony material around the ring, and the other had a hose outlet. Matt also found a control box, with a digital display, and a hose, which connected the tube and the control box, which Matt assumed also housed the pump. Below the display was a power button and a button labelled "REVERT". Probably for emergencies, Matt thought.
Matt found the power cord, and plugged it in. When he pressed power, the machine emitted a small startup chime, and displayed two options on the screen:
[A] SIMPLE ADJUSTMENT - For beginners who want to easily control their size adjustments
[B] SET PARAMETERS - Adjust characteristics individually before starting
Below that, the machine showed this line, with the Y selected:
ADJUST TESTES ADJUST PROPORTIONALLY WITH PENIS? (Y/N)
What a joke, Matt thought. He wanted to see how much detail this really had, so he tapped SET PARAMETERS. The menu options immediately were replaced by a dialog box, which read "INSERT SUBJECT INTO TUBE".
Curious now, Matt slowly undressed, and gingerly placed his penis inside the tube. Expecting the machine to take a picture or something, he was instead greeted by the dialog disappearing and being replaced by several new fields of information. The screen read:
[SUBJECT INFO]
FLACCID LENGTH: 2.4IN
FLACCID WIDTH: 1.2IN
ERECT LENGTH: 5.4IN
ERECT WIDTH: 1.4IN
BALL SIZE COMPARABLE TO: GRAPES
Below this, the machine advised that tapping any field would bring up an editor window. It also said to not remove the subject until changes were applied, or entered data would be lost.
Matt was at a loss. On one hand, the machine had just read off details about his penis, which his friends had no way of knowing. Would it be possible that this wasn't a prank?
Now fully curious, Matt considered how to prove it. He thought of the kids at school, and how they walked around the locker room with bigger bulges, even when not hard. But he was average, right?
Suddenly it hit Matt. He didn't have to increase his erect size, but if he made his penis a shower instead of a grower, then it would prove the machine worked.
Quickly, Matt hit the FLACCID LENGTH button, and two arrows appeared next to the field. Matt held down the Up Arrow. The number slowly rose until it hit 5.4 inches. A dialog box popped up, saying that if he increased further, erect size would be increased as well. Matt hesitated, then upped his length to 6 inches. He tapped OK, and the arrows disappeared. Matt noticed the ERECT LENGTH field had also changed to a 6 as well. Matt also noticed a new "APPLY CHANGES" button had appeared at the bottom of the screen. He tapped it, and waited.
A few seconds passed. Matt was just about to pull his cock out of the tube, when he felt suction. The machine whirred to life, and displayed a new dialog, "APPLYING CHANGES" and below that, a progress bar, which was currently at 0%.
Matt suddenly felt a pulling sensation on his cock. He looked down and watched it closely. As he looked closer, he realized that it was expanding, and it wasn't getting hard from the suction. It passed the 4 inch mark, then the 5 inch mark, and finally settled at 6 inches, a mark that Matt hadn't been able to reach before. The machine's dialog changed to "APPLY COMPLETE", then went away. The suction stopped.
Carefully, Matt pulled out his cock from the tube. Upon holding it, he realized it was much more sensitive. Even though the thickness hadn't increased at all. Matt realized he hadn't adjusted that number.
Even though it wasn't thicker, Matt's cock was certainly impressive. It was bigger soft than most of the kids at school, but didn't grow any longer when it was erect, just a bit thicker. Matt didn't know what to do next...