(shaggy pov)
Light flooded into my eyes which were adjusted to darkness blinding me before my eyes adjusted to the bright light looking around. I couldn't help but exclaim “Wowee scooby doo i think we're onto something. it's like a huge laboratory”. The elevator coming to a stop before dinging indicating that the elevator had stopped, opening the fence like doors with scoob running out of it with me following scoob, before i could get a few steps away from the elevator i was startled by a sound coming from behind me, turning around he saw that the door of the elevator close by itself with the sound being from elevator going up.
Walking forward deeper into the lab the amount of chemicals and lab equipment with their contents bubbling and steaming, glancing at the equipment he couldn't help but exclaim “oh, this place is like cluetopia scoob” before getting a grunt’ of agreement from scoob, taking one last glance at the lab equipment i looked around for anything that might be a clue, and to his surprise on the fat right wal from where they had come in from the elevator was a giant vault door that was rusted and has strange letters on the circumference of the door.turning around i tried telling scoob, “check out those weird letters scoob” turning around i was horrified, there was a monster, it had two eye stocks with a fat belly and normal arms but had multiple tentacles for legs, before i could scream the monster looked at me and said “raggy” as his tentacles held multiple glass containers containing what i can only assume as potions, only one person says my name like that and that is scoob, “scooby doo, you turned into a freaky monster” the now monster scoob turned to look at the mirror that was on the fridge that had more of chemical potions inside, scoob looking at the mirror screamed in horror at what he was and in shock flinged the potions all around him. Trying to calm scoob down i say “you don't need stuff that glows” before rummaging around the fridge trying to find something to turn him back to normal “now there's gotta to be a antidote in here somewhere” before grabbing a deep blue colored potion, “here try this scoob, it looks like medical” as i hand it to scoob he dips one of his tentacles into and tasted it before drinking the whole potion, noticing that i had a little of it on my hand i lick it off, turning to scoob i say “ it taste like straw-” before i could finish talking i feel my body move on its own, as if i was having a seizure.
Feeling that i have regaining control of my body i finish my sentence, “-strawberries” before turning to the mirror to see if if i had changed and looking my head in the mirror “ i'm okay scoob” before looking down and seeing that, to my horror i had a body of a girl and my tshirt turning into a crop top, turning to where scoob i screamed at scoob “ i have a chicks body” before screaming in horror as scooby has changed again, scoob has turned into a-, “i'm a tasmanian devil” scoob said before roaring and giggling at himself, turning back to the fridge i rummage around looking at each potion trying to find one that would turn both of us back to normal. Grabbing one of the potions he threw it behind him before grabbing one that looked promising and splashing it on scoob before grabbing another one and chugging it down and throwing the empty bottle behind him, before he could realize what he had done he felt himself lose control of his body again but unlike last time he could still see what was going on, he could see that his upper body crunched down with his arms reaching below his knees before green fog begin to eminent from his body before his left arm shot out with the muscles in that arm doubling in size giving him a small bicep, and before he could understand what has happen the green fog grew more intense before his left arm muscle grew again, the arm lengthening past his knees and with a amount of muscle that made it look as if he had stuffed thanksgiving turkeys into his arms.
Following that he felt his right arm follow suit before his pecs grew into big and plump and obstructed his view of his abs, his abs which have grown into a perfect six pack, not that he could see his abs to feel them and he could tell that his previous crop top turned into a large tank top that stretched tightly against his body, following this he watched as his left leg shoot out and transformed into a big buff leg that could handle all the new weight that he had with his muscles, his other leg as if jealous of his other more muscular leg followed suit and transformed into a perfect copy of the other leg with his ass growing into plump orbs of power causing his pants to give him a wedgie in both his ass and his dick, which had started to feel hard and was becoming erect, no it stretching out, getting longer and thicker with his balls taking up what room was left of his underwear and causing a noticeable bulge to start forming which grew tighter and tighter, but before his pants ripped his pants changed to fit his legs and ass comfortably, but still left him with a noticeable bulge in front of his pants with his dick snaking down his pant leg.
Looking at his new body he should have screamed, he sould be scared, he had turned from a scrawny teen to a bodybuilder that looked as if he was doing steroids, but he felt powerful, confident, he could feel his brain changing to match his new body, his intelligence shrinking to the level of a dumb horny jock with a ego that only care about his muscles and showing others that he is better then anyone esle, unable to remember what he was thinking and his previous concerns he laughed at the power he felt before flexing his arms against his pecs, “check it out dude, i’m buff hahaha”.
The now geek scoob ramble about something not that he cared, the only thing his was focused on was flexing his muscles, flexing his biceps he stared at the pulsing peak of muscle that had a throbbing vein running across, unable to resist the sight of his own muscle he leaned in and gave a loud kiss before crunching his abs as he squatted slowly, feeling his abs and ass fight against his skin tight clothes, rising up he gave a smack to his ass feeling how muscular and plump it was wishing that he could kiss it and show it off. Looking around for anyone to admire his muscles his eyes laid on a still babbling scoob, turning to scoop i shouted at him ”check out my pecs little man *ugh*” as I raised my arms before bringing them down showing just how big his pecs were. Scooby-, no that geek continued babbling on about some science mumbo jumbo, not understanding “what” i unconsciously mutter to scoob. Scoob yells with annoyance “ I'm going to transform us back!”. Hearing those words i couldn't help but get angry, he wants me to go back to being a scrawny, scared twig of a man and lose my new hot body, unable to contain my rage i shouted at him “No way geek” as i…..