Dustin growled as he pinched his nipple and jacked off while looking at the two vials. He was already bigger than any man on earth, but this was not enough. The whole world had to witness how hung and powerful he was. He took the evil vial and chugged it. He could feel the corrupting liquid inch down his throat, infecting him from the inside. He roared as he felt a demonic fire burn him from within. A beastial rage overtook him as he burst through his room and landed outside. Bystanders turned around to see a 10ft tall monster thrashing and destroying everything in his way.
Dustin tasted the chaos he was causing. He growled in pleasure as he felt the corruption within reward him for his evil acts. His claws grew larger and sharper. His horns burst out for an additional feet in length. He could feel his dick getting longer and thicker as he jerked it violently. It inched upwards more and more until Dustin unleashed a deafening roar that the whole city could hear. His now 8ft long monster cock came all over himself in great thick spurts. Shot after shot exploded out of him with no end in sight. The pleasure broke him, his humanity was overtaken by the power and lust of being evil. More cum shot out of him but this time it was turning black like the liquid in the vial. He hungrily gorged the dark corrupting fluid. He could feel his body absorb the cum. His whole being was embracing the corruption. His fur became jet black and all of his teeth became razor sharp. Demonic wings burst from behind him and expanded until they both were 5 times as wide as him. He pulled his head back and roared in pleasure as he let the corruption fully infect his mind. His now bright red eyes showed his now demonic soul in its full glory.
He wanted to destroy this city, burn it all to the ground and infect every single survivor with his thick corrupting cum. But why stop there?