--Disclaimer---
This story is entirely fictional and doesn't/shouldn't represent any real life situations. It is strictly for entertainment purposes.

"Aaaaaah!" Sonic and Tails shouted as the plane crashed through the trees. 

They were traveling back from Angel Island when the engine of Tails' plane "The Tornado" suddenly shut off. Tails managed to spot a small secluded atoll on their descent, and crash landed in a thicket of palms. 

"Ugh, you ok Sonic?" Tails asked, unfastening his seat belt and hopping out of the plane. 

"Yeah, I think so," Sonic replied, holding his head with both hands. He too removed his seat belt and climbed down from the plane. "Oof!" Sonic fell face first into the sand and rolled over. Looking up at the Tornado his heart dropped seeing the engine ripped off and sitting on the ground. Tails was inspecting it, but looked worried. 

"Awe crap, the oil reservoir is completely shot," Tails whined. "No way I can fix it now." He turned around facing Sonic and sighed. "Looks like we're stuck here for a while." 

"How long is a while?"

"Well…" Tails flew up and flipped a switch inside the cockpit. "I'll send a signal back to my workshop. Ray is supposed to check in every Saturday with me. He knows if I'm gone, to check my receiver in the garage for any messages."

"Saturday? Tails it's Tuesday!" Sonic shouted. "Ugh, seriously little buddy, what are we gonna do for 5 days in the middle of nowhere?"

Tails smiled and glanced up and down the blue hedgehog’s body. It had been 3 weeks since he introduced him to sex, and the horny young fox was starting to get restless for another night with him. Their schedule battling Dr. Robotnik kept them from enjoying any intimate time together, so both had gotten rather pent up. 
"Well Sonic," Tails said, a devious smile growing on his face as he stepped closer to him. "I can think of one thing I'd like to do." Tails stepped into Sonic’s space and reached both arms up around his neck. Leaning up he closed his eyes and gently kissed his lips. 

"Tails," Sonic whispered, placing his hands on the young fox's waist. "Is this really the best time for this?" 

"Oh shut up," Tails snapped back. Parting his lips, he slipped his tongue into Sonic's mouth, passionately kissing his older friend. Sonic, while surprised, was receptive to his little buddy's affection. His hands ran up the golden fox's sides, then back down to his waist. Breaking from the kiss, Tails looked lustfully into Sonic's eyes. His right hand trailed down the blue hedgehog’s back, and he gently squeezed his tail. 
"You're so sexy, Sonic." 

"Mmmm, you too little buddy." 
Tails giggled and pulled back just enough to get his left hand between them. With an open palm, he ran his hand across Sonic's slit area. 
"Ah!" Sonic gasped. "T…Tails?"

"Come on Sonic, we both need this." 

Sonic sighed and pushed Tails away. He held his right hand over his face as he thought. A disappointed Tails watched him, worried he was going to say no. Sonic then sat in the sand and looked up at Tails. He kicked off his shoes, and pulled off his gloves, setting them aside. With his right hand he began rubbing his slit while keeping his eyes on the young fox.
 "Well don't just stand there Tails. Get your gear off and let's do it!" 

Tails nearly fainted. He quickly discarded his gloves and shoes, then got on his knees in front of Sonic. He rubbed his sheath, coaxing out his boyhood for their blue hedgehog's amusement. Their dicks hardened simultaneously, meeting in between them for a kiss of their tips. Tails giggled, feeling his older friend touch him. 
"You had me worried for a second there. I thought you didn't want to do it."

"Oh, Tails…" Sonic grabbed the young fox's chin and brought his lips up kissing him. "I'm always up for a little fun with you." 
Letting the blue hedgehog slip his tongue past his own, Tails reached down with his right hand and rubbed their dicks together. He could feel Sonic's warmth fur tickle his sack, as their forbidden zones rubbed together. 

"Hehe," Tails giggled, pulling from their kiss. "You've become such a horn-hog haven't you?"

Sonic chuckled and looked down. Raising his left hand he placed it over Tails' right, helping him rub their dicks together. 
"This feels pretty good, little buddy, but I think I'd rather you put it in me." 

Tails' nose nearly bled at Sonic's suggestion. He jumped forward, knocking him to the ground and kissed him again. Instinctively, Tails bucked his hips, grinding against the blue hedgehog. It didn't take much for him to want Sonic's body, and the small invitation was all he needed. His body had been aching for his older friend the entire flight, so he was more than ready to give Sonic everything he wanted. 
"You sure you want this, Sonic?" Tails asked. Knowing how horny he was, he didn't want to come on too strong, but the young fox's lust was already starting to overtake his mind. 

"Mmmhmmm," Sonic nodded. "Besides I doubt I could hold you back now." His eyelids lowered as he resigned his body to the young fox. Spreading his legs he glanced up at Tails and smiled. "So how do you want me?"

Tails' jaw dropped. He was in awe of his sexy hedgehog friend. His 4 inch cock twitched, releasing a short string of precum from his tip. Licking his lips he stared at Sonic's pulsing 8 inch cock. He could see the blue hedgehog's tailhole clearly as it winked, inviting him over. Tails' gaze returned to Sonic's eyes and he smiled.
"Lift your legs up, Sonic." 

Doing as he was told, Sonic reached under his legs and pulled them up as his back slumped further into the sand. Tails got down on his knees and aligned his stiffness with the blue hedgehog's tailhole. He rubbed the tip back and forth, lubricating the opening and teasing his older friend. 
"I'm gonna pound you into next week, " Tails said, trying to maintain his cool. His heart was pounding heavily in excitement though. He could barely hold back as he made sure his partner was ready for him. 

"Go ahead little buddy," Sonic reassured him, "Give me all you got!" 

"Ok Sonic, here I go." Tails pushed his tip and it quickly slipped inside. Sonic gasped as the young fox’s member penetrated his tailhole once again. Tails, eager for more, continued into Sonic until his entire 4 inch boyhood was inside. His knot swelled, still covered by his sheath, but Tails quickly reached down pulling it free. Sonic flexed his internal muscles, squeezing Tails over and over as they both got used to being connected again. 
"Ungh, you're so tight!" Tails grunted as he began thrusting his hips. 

"Hehe," Sonic chuckled. He clenched his teeth, trying to loosen his tailhole, but he still wasn't used to being penetrated on a regular basis yet. Even still his little buddy's dick felt amazing as it rubbed against his prostate. His 8 inches throbbed with each thrust Tails made, feeling precum force out of his body from the pressure. The young fox knew just how to please his inexperienced hole, grinding in and out with precision. 
"Oh Mobius!" Sonic moaned, letting his voice call out across the island.

Tails, seeing his partner's pleased face, reached down and replaced Sonic's hands with his own. Now with more force than before, he pounded his boyhood more forcefully in and out. Picking up speed, Tails grinded his growing knot against the blue hedgehog's tight tailhole. The need for his swollen lumps to be pleasured with the rest of him grew with each thrust. Normally he would squeeze it with a free hand, but the devious golden fox had a much different idea. Sonic's tailhole was the perfect size for his cock, but he still wanted more.
"Sonic, I'm…ah…gonna try something new. Take…ah…long deep breaths if you…ah…can."

"O…ok, little buddy." Sonic replied between the slapping sounds of their bodies. Closing his eyes, he did his best to focus on his breathing, not sure what his horny young lover had in store for him. 

Tails continued pumping, while also pushing his knot harder and harder against Sonic each time. He wanted…no…he NEEDED his knot inside Sonic's body. He was determined to force it past the tight opening. With Sonic now breathing in longer increments, Tails felt his lover's tailhole loosen enough to make it happen. 
POP!

"UNNGH!" They both grunted, voices now sounding primal. Their animal instincts switched on and Sonic crossed his legs around Tails' back. 

POP! POP! 
"AH! WHA…!?" Sonic gasped as Tails pulled his knot back out, then immediately forced it in again. "ARGH! TAILS!" He shouted. The young fox was now continually forcing his knot in and out of Sonic’s tailhole. It was a crazy mix of pleasure and pain as the blue hedgehog was repeatedly stretched out over and over. Gritting his teeth he did all he could to stay relax as Tails violently ravaged his body. 

"That's it Sonic, deep b…breaths." Tails did his best to keep him calm, but he also loved how much Sonic was clenching on his knot. It was the best sex they had to date, and Tails couldn't help but love every second of it.

It took a few minutes, but Sonic eventually became used to the constant pressure. He could feel his body begin to ache as the need for release built in his loins. He needed to cum so bad, and he just couldn't hold back any longer. Grasping his length with his right hand, he stroked himself as Tails continued forcing his knot in and out. Little did Sonic realize that touching himself would cause his tailhole to tense, creating even more resistance for the young fox's knot. 

The resistance was immediately noticeable to Tails, so he reached over with his right hand. Sonic's leg dipped down for a moment with Tails no longer supporting it. 
"No no silly," Tails said, pulling Sonic's hand away. "You don't get to cheat."

Sonic whined as Tails replaced his right and began thrusting again. "Please Tails…I need it."

"In a minute," Tails grunted. "I'm…I’m gonna…AH!" Tails thrust his knot into Sonic's tailhole one last time, just as he reached climax. His boyhood throbbed wildly as his thin cum splashed into the blue hedgehog. 
Sonic let out a soft resigned moan, as he felt his body warm from Tails' love juices. It wasn’t enough to push him into his own orgasm though, so he was left tingling but unsatisfied. Sonic's face was flush as he watched the young fox shiver while lodged in his tailhole. He was happy he could make his little buddy feel so good with his body, but the lack of release was driving him crazy. 

"Tails I…I…" Sonic gasped. He couldn't think straight enough to want anything, but to cum. "Please…" 

"Ungh!" Tails grunted, pulling out his knot. A splash of his thin boyish cum shot out of Sonic’s tailhole as he did. "Sorry Sonic, I just really needed th…whoa!" 
Sonic didn't waste any time. He quickly sat up and pushed Tails onto his back. The blue hedgehog growled at him like a wild animal. His cock throbbed hard, shooting precum out like a faucet. Sonic held his hands on Tails' wrists, pinning the young fox in the sand. 
"Uh, Sonic? What are you…MMPH!" 
Sonic leaned down and forced his tongue past Tails' lips. As he rolled his tongue together with Tails', he positioned his tip at the fox's tailhole. 

Breaking from the kiss, he looked lustfully into Tails' eyes. "My turn," he growled, bucked his hips, and forced half of his 8 inch cock into the golden fox's tailhole. 

"Ah!' Tails gasped, his body still sensitive from his recent climax. Sonic was never this rough with him before. Tails was actually a little scared as his older friend forced the rest of his cock inside. The look in the blue hedgehog's eyes was unlike anything he'd seen before. It was like Sonic was acting possessed. 
"Ungh, Sonic!" He moaned. Despite the bit of fear, Tails couldn't help but enjoy being dominated. His tailhole was now being forcefully violated by Sonic, which felt somehow even better than when it was slow and steady. His older friend grinded hard and fast, using his body like a toy. Despite having just cum, Tails could feel himself leak just from the force of Sonic's cock slamming against his prostate. 

PLAP PLAP PLAP PLAP PLAP PLAP 

Sonic was moving so fast his hips became a blur. He was desperate to release his load, and was quickly reaching his peak. The familiar pleasures boiled to the surface and he could feel his dick begin its rhythmic pulses. 
"AAAGHH TAILS!!!" He shouted, slamming hard against his young lover's hips, as his orgasm commenced. His whole body tensed. The pleasure was like lightning coursing through his veins. His toes curled tight, he squeezed Tails' wrists, and he closed his eyes. From his long mobian cock came a tidal wave of hot liquid. Tails gasped as Sonic's cum soaked his insides. The young fox couldn't believe it! Sonic just kept cumming. 6, 7, 8, 9…all he could do was lay back as his older partner continued pumping him full. 10, 11, 12, 13…14!? 14 massive squirts and Sonic finally was finished. 

Loosening his grip, Sonic pulled back sitting on his heels gasping for breath. He remained slit deep in his little buddy for the time being. The last of his cum dribbling out of his shrinking cock. 
"Oh man, Tails. I…huh?" Sonic suddenly gained clarity and realized just how rough he had just gotten. "Oh crap Tails, I'm so sorry!" He wiggled backwards and his semi slipped out of him. SHLOOP! "You ok? Aw crap, I couldn't stop myself! I didn't hurt you did I?"

"Pfffft…Hahahaha!" Tails slapped his right temple laughing. "Geez Sonic," he said, sitting up. His tailhole gaped wide, spilling out much of Sonic's cum. "Talk about post nut clarity. Haha. I'm fine." Tails leaned forward and kissed Sonic's nose. Tails smiled. His tailhole was certainly sore, but the sensation of Sonic's cum overflowing from his body felt incredible.
"That was the hottest thing ever! I had no idea you could be like that! You gotta promise to do that again!"

"R…really?" Sonic's jaw dropped. He was worried that he took things too far, but Tails actually enjoyed it. The sudden approval gave him a boost of confidence, and he leaned forward to kiss Tails again. He kept it to the young fox's lips this time though, just simply expressing his love. 
"You really liked when I was rough?"

Tails raised his right hand and caressed Sonic's cheek. "I actually really did. You know something Sonic?"

"Hrm?"

"I think Saturday will be here before you know it." 

Sonic smiled and placed his hand over Tails'. "Yeah, I think you're right, little buddy."