Katherine ran up to a vendor who had a bunch of sci-fi toy looking stuff, and looked at some of the blasters.
Jake who caught up fairly quickly said "you really like those sci-fi things don't you?" Katherine nodded and looked at the guns as the rest of the group caught up.
Seeing a little girl stare at the guns like a little kid in a candy shop made the vendor say "You know we actually are having a little special here for some of those guns."
Katherine's eyes lit up and she asked "Really!?!"
The vendor said "Yeah, the guys who make our stuff have some defective units. Like they work, but there are two main problems. They are unlabeled and the beams are a little too small so instead of affecting the whole body they only affect the part of the body they hit. Thanks to that we are giving those units out for free here as a little promotion. One per customer though." The vendor took out a box filled with the lazer guns and said "take some kiddies go nuts with them here. you'll turn back to normal anyways." The group took a gun apiece that each were a different color. Katherine got a red gun, Jake got a yellow gun, Timmy got a green gun, and Sandra got a pink gun.
Sandra put her gun in a top bag she had found and Jake said "Come on Sandra we just got these things that change people so let's try these things out!"
Sandra sighed and took out her gun and said "Since you suggested it" she then fired a few shots that randomly hit Jake then she looked to see what happened.
Jake said in a higher pitch voice "that felt odd... wait" Jake looked at the areas where he was shot which was his left arm, right breast, stomach, crotch, and his neck. While most of his changes were rather small he could tell his voice was more feminine, and that his dick was changed into a vagina.
Sandra said "wait did I turn you into a girl?"
Jake took out his gun and said "A little, but I still have some guy in me thanks to that things little effect area. In the mean time" Jake shot Sandra on her left breast and said "if that were a real gun you'd have died."
Sandra was clutching her left breast and said "my chest feel weird..." her nipple started expanding as flesh started piling beneath it ending with her left breast expanding into a D-cup. There was now a little fire in Sandra's eyes and she raised her gun and then...