A multi-chapter based on a picture by Luigiman on Rule 34, where Mordecai has a huge dick and lots of muscle.
Mordecai and Rigby were looking at porn websites on the house computer when suddenly an ad popped up in front of them. In bright colours it read: 'Want a dick so big that your lady would be able to lie down on it?' Mordecai and Ry nodded to each otgher and the raccoon grabbed the mouse and clicked on the ad. Their screen temporarily went blank, then the porn site showed again. 'That was weird,' the two thought in unison.
Mordecai looked over to the other side of the desk and saw a bottle of pills which he hadn't noticed before. He picked them up and squinted at the label. "1-metre dick: GUARANTEED!" 'Hey Rigby look at this! Must be from that popup we saw on the computer.' The raccoon ran over and took the bottle from the blue hands. 'See the instructions? It says "Take the pills once per day and you will see a gradual increase in the size of your dick. CAUTION! Only use as directed or there may be permanent damage to your body." Hm, how many pills are there? One a day... blah blah blah... Ah, here we go! "Take pills once a day for 60 DAYS!?" Ugh that's way too long! Let's just take them all now!' Rigby ripped off the cap and lifted the bottle to his mouth. His head tilted backward and he started chugging them. He consumed about 20 before Mordecai swiped the bottle off him. 'Leave some for me dude!' He took a step away from the raccoon and poured the remaining 40 capsules into his mouth.
He swallowed them all at the same time, and instantly put a hand on the computer chair to steady himself. 'Woah dude, I don't feel too good,' hee moaned, his legs about to buckle. 'Ugh, me neither,' Rigby said, breathing heavily as he clutched his stomach, fell to the ground and promptly passed out. Mordecai did the same, almost crushing Rigby as he slammed onto the floorboards.
The world went black around them.
So, I've already pre-written the next chapter so that will hopefully come up soon. Hope you enjoyed