A/N: All characters involved were at least 18 at the time of this story

It was a warm day in the Kingdom of Mobius, and Shadow the Hedgehog was spending it in his bedroom at Rouge the Bat's mansion, reading an Executioner comic book. While he didn't mind roaming from place to place, Rouge's mansion was that one safe place for him where he felt protected against the slings and arrows of outrageous fortune. Overall, he was feeling calm. Then, he heard a two second tone coming from a red retro landline phone on his nightstand.

"Shaddy, you have a visitor!" said Rouge.

Shadow pressed a "talk" button on the phone.

"Who is it?" asked Shadow.

"He said he wanted it to be a surprise, but you know him!"

"Look, just tell me who…"

Shadow was cut off by someone knocking on his door.

"Never mind, Rouge."

Shadow pressed the "hang up" button, put down his comic book and went to answer the door. Upon opening it, he saw Sonic the Hedgehog standing there. Not wanting to do anything with his number-one rival, he closed the door.

"HEY! WAIT!"

Sonic forced the door open before Shadow could close it all the way, but the Ultimate Life Form did his best to shut him out.

"Sonic, whatever it is, I'm not interested."

"Shad, ya don't even know what I boogied over here for!"

"And I don't even care. Now fuck off."

"Come on, at least hear me out, man!"

"No."

"Look, if Rouge was polite enough to let me in, then so should you!"

"Ugh, if I hear you out, do you promise to go away immediately afterwards?"

"Maybe!"

"Fine…"

Shadow stopped struggling and let Sonic in, after which he closed the door.

"Now, tell me what you came to waste my time with," said Shadow.

Sonic smiled. "I'm gonna be straight up: I wanna give ya head."

Upon hearing that Sonic wanted to perform such a sex act on him, Shadow's face turned green, but he did his best to maintain his serious demeanor.

"Sorry, I'm not interested," said Shadow.

"How would ya know? It's perfectly normal for guys to give each other head!"

Shadow crossed his arms. "It is, but I don't want you of all people doing that to me."

"But you're such a handsome dude! I'd be honored to have your cock in my mouth!"

"No means no. Now go away before I jam my hand through your ribcage and tear your fucking heart out."

"Please?"

Sonic clasped his hands together, put on his most adorable smile and gave Shadow the "Bambi eyes" look. On one hand, the Ultimate Life Form still hated the Blue Blur's guts, but on the other hand, it just occurred to him that he hadn't had a good release in a while, and maybe this would be beneficial for him. He sighed.

"All right…you win," said Shadow.

Sonic pumped his fists. "Groovy!"

"Just one condition…"

"Yeah?"

"If at any point I decide that I don't want this, we're stopping, and we're NEVER doing this again. Do you understand?"

Sonic put on a seductive smile and slowly took his gloves off. "Oh, don't worry, Shad! I'm gonna make this really sensual for ya!"

Sonic put his hands on Shadow's shoulders and kissed him. As much as he still didn't like Sonic, Shadow didn't even push him away. His lips just felt so soft and buttery. After a few seconds' worth of kissing, Sonic put his hands on Shadow's torso and slowly fell to his knees, kissing Shadow's chest fur and stomach before finally coming to his nether regions. Sonic wrapped his left hand around Shadow's thigh, and without hesitation, Sonic grabbed Shadow's cock with his right and proceeded to tease it with his tongue. It was at this point that the Ultimate Life Form was starting to let go of any hatred that he held for his rival. Granted, he was still unsure about doing this, but Sonic's tongue felt so good, and it was impossible for him not to get hard. After about a minute's worth of teasing, Sonic looked up at Shadow.

"Ya ready for it, Shad?"

Shadow nodded. He braced himself, and then it happened:

Sonic started sucking Shadow off.

Immediately, Shadow let out a flustered gasp when it began. Sure, Sonic was that one guy he really hated, but his mouth felt so warm and velvety around his cock that he just couldn't bring himself to hate him. Furthermore, he relished the thought of dominating his rival, although he wondered if it was he himself who was being dominated considering that Ol' Blue had offered it to him in the first place. Regardless, the Black Blur stood there, enjoying the sensation that he was receiving at the moment. As a matter of fact, he was enjoying it so much that he would occasionally moan whenever Sonic's tongue went over an especially sensitive area of his cock. He was right: there really was nothing wrong with a guy giving another guy a blowjob, and he decided that maybe guys did it better.

Sonic was having the time of his life right now. After so many instances of slugging it out with Shadow, it felt so different, so enjoyable to be engaging in consensual sexual activity with him. He'd secretly found the Black Blur to be so attractive ever since they'd met, and now that he could indulge in him, things were that much better. Granted, Sonic had a little trouble taking Shadow's cock in his mouth because of how well hung he was, but on the other hand, he had little trouble gobbling down chili dogs in one bite, so it wasn't all bad. One thing that Big Blue especially enjoyed about this was the prospect of making his rival cum. Wanting him to cum hard, Sonic bobbed his head up and down at varying speeds and used his tongue as best as he could. After some time, however, Sonic wondered how long this was going to take, so he took a pause to catch his breath.

"Why are you stopping?" asked Shadow.

"Nothin', it's just…you're lastin' quite a while." Sonic put on another seductive smile. "It's OK, though; I got a secret weapon…"

Sonic resumed the blowjob after catching his breath, only this time, he was deepthroating Shadow, who dropped his jaw after seeing how deep his rival could go. There was just something so hot about the way that Sonic could take his cock that deep that he wondered how long he was going to last. Nevertheless, Shadow just tried to concentrate on what it was like for Sonic and how he wished he'd asked for this earlier. As long as he was lasting, though, even Shadow couldn't last forever…

"Oh, Sonic! SONIC!"

Shadow put his hands on Sonic's head, squeezed and grunted as the tightening in his cock and balls became too much for him, and he released his first cum blast into Sonic's mouth. The Blue Blur coughed as he almost choked on the Ultimate Life Form's load, not expecting him to cum that hard. Nevertheless, he did his best to keep sucking, keeping it up until the Ultimate Life Form stopped spurting. Because of the release that Shadow was getting, some of his spunk dribbled out of Sonic's mouth and down his chin. Eventually, Shadow came down off of his orgasm, and Sonic kept his mouth wrapped around his cock, still trying to swallow whatever drops of semen he could. When he was satisfied, Sonic let go, and with a smile on his face, he looked up at Shadow, who was still panting from the release.

"That seemed like it was really good for ya!" said Sonic.

"I…oh god…Sonic…you have NO idea."

Sonic chuckled as he got to his feet and wiped off his chin. "Hey, thanks for lettin' me do this!"

Shadow smiled. "No, thank YOU!"

Shadow gave Sonic a big hug, which the latter gladly returned. After spending so long as rivals, both hedgehogs found it so liberating to spend time as sex partners. What made it even better for them was that it was completely consensual. Granted, it took some begging on Sonic's part, but Ol' Blue decided it was worth it. Similarly, Shadow was happy to have given in like this. Eventually, they let go.

"Just one question, Shad…"

"Sonic, you can call me Shaddy from now on."

"Right. Anyways, how long has it been since ya got off?"

Shadow frowned and scratched his cheek. "I actually don't remember…"

"I'll say! I didn't think ya had that much in ya!"

Shadow put his hands on Sonic's shoulders. "I'm sorry; I didn't mean to make you choke like that."

"Hey, don't worry about it! I actually think it's pretty hot that ya had that big a load for me!"

Shadow giggled. "Oh, you're so funny!" He cleared his throat, but kept smiling. "Actually, I have to be honest: I have no refractory period, so if you wanted to go for a second round, I'll gladly let you do so!"

"Don't mind if I do!"

Sonic got back on his knees and proceeded to give Shadow another blowjob. This time, Shadow smiled, knowing how pleasurable the last one was and eagerly anticipating another release.

Criticism is gold. Negativity and nitpicking are pyrite.