Sonic effortlessly out ran doctor robotniks slow-ass robots. he was already miles ahead of the vile machines but just for fun he continued to accelerate. Everything was starting to get blurry, despite sonic's aversion to this sort of thing. suddenly, everything became a stark white and sonic lost all visibility. Slowly, Sonic's vision vision returned to him. But this time, it was far more...green. "OI, LADDY" "whhaaooo". Sonic crashed into a great monster's huge belly and fell at a green being's feet. "What ARE YOU DOING IN MAH SWAMP" it bellowed. Sonic scanned his suroundings and sure enough, he was now in a swamp. A very different environment from the city he was charging around in. "WELL?" monster bellowed again "I- uhhh...I have no idea". "WELL i'M GOING TO HAVE TO TEACH YOU A LESSON". Shrek quickly snatched sonic's arm and flipped him over to his front. "p-please, no!". Sonic's pleas fell on deaf, weirdly shaped ears. Shrek plunged his gargantuan green cock into sonic's tiny blue anus. Sonic's belly distended over and over as shrek thrusted vigorously into the small, fast creature. "YOU AREN'T GETTING AWAY FROM ME LADDY". Sonic tried in vain to escape the beast. The pounding sped up. "p-please not inside!" for a second time shrek ignored sonic's please. Shrek bellowed as he filled sonic's cavity with his milky green seed, once again distending sonic's belly. "THAT'LL TEACH YOU TO TRESPASS ON MY PROPERTY!" Sonic fell to the ground, broken and full of semen. "DONKEH I GOT ANOTHER ONE" yelled shrek, as he happily walked into his makeshift house.
Sonic was still trapped in this foreign world. He was forced to find solitude in the dank, horrible swamp. It was dark and horrible and sonic's rectum still hurt. So he decided he wanted revenge. Sonic tip toed to shrek's house while he slept and hopped through the window. He slowly slid shrek's patchy pants, revealing shrek's green cheeks. Sonic was fully hard now. "GOTTA GO FAST" yelled as he shoved himself inside shek's surprisingly small anus. "AAARRRRRGGGGHHH" shrek cried in pain. Shrek's ass was being pounded at hundreds of thrusts per second, which quickly prolapsed his anus. As sonic acelerated, the world went white again. Sonic was close. "STEP IT UP". as sonic pumped shrek full of his thick seed he was transported back to his homeworld, satisfied and happy.