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Knuckles was beginning to grow obsessed with the idea of Sonic and Tails playing with his feet. Every night he applied the lotion Tails had given him onto his bare soles, and every morning he woke up with an unsatisfied hardened cock under his blankets, excited for the session that would soon take place.

Sometimes, Knuckles would wake up far too early for the sessions. These days were always agony. His cock was hard, and the last thing he wanted to do was touch it and risk getting off on fantasy alone when reality was just around the corner. He would lay on his belly, gripping his fingers into his sheets and grind his lower half slowly. He allowed his feet to slip out of the covers and toes to curl. He would imagine they were being stared at. He would imagine they would soon be licked and pampered as he ran the toes of one foot along the arch of the other. His cock pressed down hard to the center of the bed as he whined, counting the minutes as they went on and on.

"Somebody's excited," Sonic commented when the time had finally arrived. Knuckles was outside of Sonic's door, his legs squeezed together as he crossed his arms and tried to pretend like it didn't bother him he was so obviously turned on. Sonic was already barefoot, his shoes just outside the door as he leaned on the frame. "Boy, you're more into this than Tails."

"S-Shut up," Knuckles said, though he knew Sonic's words were true. It was embarrassing to say out loud. How day in and day out he fantasized about his feet being touched and licking the soles of his best friends.

Sonic just laughed at him as Knuckles removed his shoes, slowly, and walked into the hut. Sonic plopped down onto the couch, and for the first time Knuckles realized that Tails' shoes were not outside of the door. Which meant the fox was nowhere to be seen.

"Am I early?" Knuckles asked, his chest pounding a bit.

"By about an hour," Sonic said, a smirk crossing his face. "But I can see it's an emergency."

Sonic's eyes were once again down to the member half hard between Knuckles legs. The echidna was caught between wanting to squeeze them shut or bare it. Sonic was always the rougher of the two. Where Tails liked to go slow and make Knuckles feel pleased, Sonic was a wildfire that liked to tease and torment without restraint. Sonic leaned back further into the couch, and started to chuckle.

"Well c'mon, big guy," He said, patting his lap where he expected Knuckles to lay his soles as he did so often. "Let's get you sorted out."

"Without... Tails?" Knuckles asked, frowning.

"Something tells me you have enough stamina to go again when he gets here," Sonic said with a grin.

Knuckles felt his face grow warm. It was true, even after sessions where Sonic and Tails were exhausted Knuckles secretly wanted to keep going, and would sometimes go off to his room to jerk off once more.

"You're pretty horny, aren't you?" Sonic asked, raising one brow. "Well get over here before I change my mind."

Knuckles swallowed a lump in his throat, and approached Sonic slowly. Sonic had a wicked sort of look in his eyes much more like a hungry wolf than a hedgehog. As Knuckles approached he remained still, and even as he sat down on the couch and gently placed his bare red soles into his friends lap Sonic simply lifted his fingers slowly, and pressed them down to the arches.

"Tails lotion is magic, huh?" Sonic asked, running his fingers slowly.

Knuckles felt his chest tense with the urge to giggle at even this light sensation.

"Y-Yeah," Knuckles said, leaning back and letting his fingers claw at the cushion of the couch.

"God, your feet are so much bigger than his," Sonic commented with a grin. He took one single finger and traced it in slow, methodical circles from the ball of Knuckles left foot to his heel. "Hey, I've been trying to convince Tails that you're ready for the hard stuff. What do you think?"

"Hard... stuff?" Knuckles asked, the words coming out slow so he would not trip over them. He was so, so focused on the fact that that single finger Sonic was tracing around his foot made him want to squirm that it was hard to think. "What do you mean?"

"Well, what do we do with you every day?" Sonic asked, using the hand he wasn't touching Knuckles foot with to lean his cheek on. "You come in. We suck your toes. You give a footjob so good I could cum for days."

Knuckles face grew subtly warmer. Instinctively he shaped his soles into the position where it was easiest to stroke a cock up and down using only his toes. It was such an erotic part of the sessions that Knuckles once admitted he could do only that and be satisfied. The next day, he came in to do exactly that. His cock grew harder still at the memory.

"Yeah," Knuckles said with a slight nod, still staring at how Sonic's fingers were tracing lightly, teasingly over his toes. "What's the... hard stuff?"

"Y'know," Sonic said with a shrug. "A little like you caught me and Tails doing. All tied up. Nice and ticklish feet at my mercy."

To display his point, Sonic spread out his fingers and hovered them above Knuckles foot wiggling and dancing.

"Mmm," Knuckles made a noise, because the memory of that alone was making his heart pound faster.

"I think," Sonic said. "You'd look adorable all tied up and helpless. Especially if I give your feet a good tickling."

"T-Tickling," Knuckles echoed. He had to admit he had been tickled in this very room plenty of times the past few weeks. It was always brief, and teasing. In the back of his mind he had been wondering when he would be given the same treatment he saw Tails get that very day. Hogtied. Tickled without mercy. Helpless. His feet scrunched at the idea, but his cock only grew harder.

"What do you think, big guy?" Sonic questioned. "You wanna have some real fun before Tails gets here?"

Knuckles swallowed a lump forming in his throat.

"Y-Yeah," Knuckles said, closing his eyes.

"What's that?" Sonic asked, grinning wickedly. "I can't hear you, Knuckles. Must be something in my ears."

"I-I want you to tie me up," Knuckles said. "And tickle my feet!"

Knuckles face was hotter than ever now.

Sonic smiled.

"Well why didn't you just say so?" Sonic asked with a laugh.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

It was exactly two minutes before Knuckles began to grow nervous. Sonic had not asked, but ordered him to get onto the floor. There Knuckles sat, on his knees in the center of the room as he watched Sonic go around the room collecting various toys. Knuckles bare feet pointed up, and he was tempted to let his toes curl under him. His heart was pounding fast now.

Without Tails here, there would be nobody to tell Sonic to slow down except him. Without Tails here, Sonic would go entirely mad with power.

Those thoughts made Knuckles cock grow harder still. He had been hard for so long now even just a feather over it would make him burst with cum, he thought. He squirmed more, waiting for Sonic to just start already.

"Well well," Sonic said, approaching with a handful of rope as well as various other instruments. "Look how excited we are!"

Sonic lifted his foot, and stroked the top of it against Knuckles cock. It did not, as Knuckles thought, make him cum instantly, though it did make him gasp and shudder. Sonic chuckled.

"What now?" Knuckles asked when Sonic removed his foot. "Do you just... tie me up?"

"Something like that," Sonic said with a shrug, going behind Knuckles and getting down onto his knees as well. "Just tell me if it's too tight. Oh, by the way. We have a safe word."

"Safe word?" Knuckles asked.

"Y'know," Sonic said as he grabbed one of Knuckles wrists and began to wrap rope around it. The sensation instantly made Knuckles tense and grow more excited, but also fearful. "Something that if I'm gonna make you cry you say it and I'll stop. I'm not demented, y'know."

"Right," Knuckles said with a nod as his wrists were slowly bound behind his back. The binding was tight. It was clear Sonic had done this many times before, because Knuckles could not get out right now without exceptional effort. "What is the safeword?"

"Hammock," Sonic said with another sly grin. "You got that?"

"Hammock," Knuckles repeated with a slow nod. Sonic was beginning to grab his ankles, and bind them together as well. The process was fast. Sonic was really efficient at this. Knuckles wondered just how many times he had tied up Tails like this. If they had been frantic and desperate to restrain the fox to begin having fun.

"There we go, big guy," Sonic said once the ankle bindings were done. "One last touch."

Without warning, a piece of cloth went over Knuckles eyes. A blindfold. Knuckles gasped, but otherwise simply bit his lip. He was blinded. He could hear Sonic's taunting giggles, and a finger touch his side without warning that made him tense.

"What's this for?" Knuckles asked.

"Wanna know how it feels when you have no clue how I'm gonna tickle you?" Sonic asked, grabbing Knuckles and hugging him to whisper into his ear. His breath was hot. "It's amazing."

Knuckles resisted the urge to tremble.

"Now get down," Sonic said.

With a push, Knuckles was lowered onto the ground until he was on his belly. His cock pressed to the floor roughly, so he went to his side. This turned out to be a mistake, as Sonic instantly grabbed for it and gave it a squeeze.

"A-Ah!" Knuckles cried out.

"That's good," Sonic said. "I'm gonna tickle you senseless now, you got it?"

"O-Okay," Knuckles responded as Sonic's fingers ran up and down his shaft, rubbing the base. When he finally let go it was a relief.

Sonic prowled as though he were on the hunt as he went closer and closer to Knuckles feet. Finally, he grabbed the rope ankle bindings and pulled them closer. Instantly, a large, wet tongue attacked his soles.

"Ahhh," Knuckles whined as the tongue instantly went for his toes. Licking and sucking and even biting gently, as Sonic tended to do. Sonic ran his tongue all the way down and back up again. The sensation was a mix of ticklish and pleasure.

"Mmhmm," Knuckles whined, pressing his lips together to hide his giggling. He could not stop his toes wiggling, however. Luckily, or unluckily, Sonic grabbed them to pull them back in order to stop him. He ran his tongue slowly along the underside of Knuckles toes.

"A-Aha," Knuckles gasped out.

"The lotion was amazing," Sonic sighed. "I bet I could tickle you till you were insane with just my tongue, big guy."

Knuckles didn't respond. He knew if he did, his words would shake because that threat was driving him insane with horniness. He wanted it, but was too afraid to say out loud.

"Now," Sonic said. "Let's get the tools."

Tools. That was something Knuckles had known was coming, but still it made his heart beat faster.

"What are you gonna use?" Knuckles asked.

"Hmm," Sonic said, the sound of many things clattering together nearby heard. "How about I don't tell you, and you have to guess? I've trained Tails pretty well to know what are torturing his feet."

This made Knuckles far more flustered, but he had little time to argue because something soft quickly struck for his feet. It was massive, and felt like a million tiny hairs all stroking at once. It ran slowly, big enough to cover a third the width of his foot as it stroked up and down. It tingled.

"A-Ahahaha!" Knuckles cried out. It ran for his toes which he quickly tried to wiggle free, but Sonic knew this would happen and grabbed them, allowing whatever tormenting tool this was to slip the tiny strands of itself into the cracks between his toes. His laughter grew louder.

"What is it?" Sonic shouted. "I wonder what is tickling your big, sexy feet?"

"I-I dohohon't know!" Knuckles shouted, struggling not to squirm too much. "N-Nohotoot there, please!"

The tool was now running up and down his arches. Again and again. It was his worst spot, right along to the underside of his toes. Knuckles found out these past few weeks he would confess to anything if toyed with on his arch long enough. Even this soft, swiftly moving device was making it hard to breathe he was laughing so hard.

"It's a makeup brush," Sonic said lifting it slowly and stroking it along Knuckles ankles where the tickling was far less. "That was an easy one. C'mon, Knuckles. Looks like I'll have to train your bare feet more."

Knuckles was breathing heavily now. His cheek was pressed to the cool hardwood floor, and his feet were still on Sonic's lap with the soles facing up to the ceiling. Sonic's grip was strong on the rope around his ankles, keeping them in place. Harder and harder Knuckles cock grew still.

"Now, tell me what this is, will you?" Sonic asked. The sound of tools shuffling around came back, and then something rough pressed to Knuckles big toe on his right foot. It felt small, but similar to the bristles of before. Sonic stroked it ever so slowly up and down.

"T-Toothbrush!" Knuckles shouted. "T-That's a toothbrush!"

"Very good," Sonic chuckled. "Hmmm, I wonder if you'll hate this game nearly as much as Tails does."

Game? What game was Sonic talking about?

"This little piggy..." Sonic began, running the brush up and down Knuckles big toe slowly.

"N-Nohoho, c'mon!" Knuckles cried out.

"Went to market," Sonic continued, switching to the next toe down the line once he was finished. He began stroking this one with the toothbrush just as he said the next line. "This little piggy stayed home."

It was getting worse with each toe. The bristles were stroking the underside of Knuckles big, pudgy toes one by one and not missing a single area. Now only was it horribly ticklish, but the little song Sonic was singing was so immature and humiliating that it seemed to make it worse.

"This little piggy ate roast beef, this little piggy had none," Sonic said, going from one to to the next as Knuckles giggled.

"And this little piggy," Sonic said, giving the pinky toe just one stroke before moving the brush down. Lower and lower all the way until it rested on the arch of Knuckles foot.

"N-No!" Knuckles begged.

"Went..." Sonic said, pressing it down rougher.

"C'mon!" Knuckles begged.

"Wee wee wee!" Sonic shouted, instantly going as roughly as he could with scrubbing the brush.

Knuckles lost his cool. He began to laugh hysterically, trying to kick his legs but couldn't because Sonic was holding him down. Scrubbing his sweet spot again and again. Knuckles screamed in laughter as the brush expanded to his heel, to his toes again, running in between torturously.

"Ahahahaha!" Knuckles cried out, flapping his feet up and down helplessly in their bindings. Sonic switched feet now, tickling the other as his fingers continued stroking the pudgy toes of the first. "Nohohoho!"

"Yeeheheeees!" Sonic called, mocking Knuckles with fake laughter. Once he was finally satisfied with torturing the echidna's bare feet, he ran his fingers up and down light enough to make him giggle but not enough to where it was torture.

"Y'know, when I give Tails feet a nice, long session," Sonic began. "They get really pink like I just tortured them. He says he likes it. Your feet are nice and red, so it's hard to tell. Maybe that just means I have to play extra hard to make them blush."

Knuckles face grew hot at those words.

"M-Maybe," Knuckles mumbled.

Sonic laughed again.

"C'mon, let's keep playing," Sonic said, grabbing the feet and lifting them up to his face. He gave them another lick. Knuckles gasped, and giggled. Sonic was hugging the legs by the ankles, burying the whole of his face into the feet. He grabbed one by the top and pushed the toes further under his toes. He nuzzled, which only served to tickle more.

"You're such a good toy," Sonic chuckled. "Mmm, Tails is gonna be so mad when he didn't get to play with you. Oh well, always tomorrow. You're alll mine today, Knux."

Knuckles kept giggling, growing more and more embarrassed as Sonic planted kisses all along the soles of Knuckles bare feet, staring at his toes and going down. It was something he had seen him do with Tails in the most intimate moments of their sessions. Tails had done it to Knuckles sometimes, but only when he was really in the mood. Knuckles felt something hard poke where his legs lay near Sonic's crotch. He was just as hard as Knuckles by now. He kept kissing, and licking, and when he was done being gentle he sunk his teeth lightly into the pudge of the ball of Knuckle's foot. A light gasp escaped Knuckles mouth.

"Mmm," Sonic said, running his lips up and down the feet some more. "Man they're so big..."

Soon, Knuckles felt Sonic twist at Knuckles' body. It was a silent order for him to turn over, which Knuckles did. His cock was pointed up, though with the blindfold he still could not see.

"Now," Sonic said, setting the feet down slowly. "What is this touching your feet?"

Instantly, Knuckles knew. The thing that pressed to the soles of his feet was hard, and warm. It was stiff as it dug into his toes and arches.

"Your... c-cock," Knuckles said.

"Good," Sonic said with a giggle. "Now be a good boy and give me a footjob, will you?"

Knuckles didn't have to be told twice. He ran his feet up and down Sonic's shaft. It was more awkward in the bindings, especially being blindfolded, but Sonic guided his feet so they pressed nicely to the cock as he was able to simply move his legs up and down. Sonic made a few gasping noises of pleasure, but none were as submissive as the ones Knuckles fought behind his throat. He felt the head of Sonic's cock dig into his toes as he bit his lip. He wanted so, so badly to moan at just this.

"Let's see," Sonic said with a bit of a gaspy laugh from the pleasure on his cock. "If you can be a good boy and give me a foot job with..."

Something hard and cold pressed to Knuckles toes. It made his feet hesitate, but only for a second before he went back to pumping. It ran, slowly. It was like tiny metal teeth running along his sole, not sharp enough to cut but enough to sting lightly.

"W-What is that?" Knuckles asked.

"I dunno," Sonic asked, running it up the areas of Knuckles feet where Sonic's cock was not. It tickled... so horribly.

"A-Ahaha," Knuckles whined, feet scrunching which only squeezed Sonic's cock tighter against them. "S-Sohohonic!"

"Hmmm," Sonic said, running it up and down and using his other hand to forcibly keep the feet running up and down. What could it be what could it be? Maybe... a fork?"

"A FORK?" Knuckles shouted.

Oh, gosh, it made sense now. The metal torment, the coolness of it. How it was so, so very good at tickling the sensitive spots of Knuckles humiliatingly soft feet.

"A-Aahahaha, Sonic not that!" Knuckles cried as the fork continues to tease at his toes while his feet pleasured Sonic the best he could.

"Tickle tickle," Sonic teased. "Gimmie a nice good footjob or I won't stop tickling you!"

"A-Ahahaha!" Knuckles whined, trying to pull away from the tormenting toy but Sonic was stronger and had the upper hand.

"Maybe you don't like that?" Sonic asked. "Well, maybe you'll like... this!"

This next tool was sharp and percise. It glided up Knuckles foot and not only tickled, but made him gasp at just how it dug into his soft skin. It was...

"P-Pinwheel!" Knuckles cried out. Sonic had used these on him before. "N-Nohotot on my toes, please!"

"Big tough guy can't take the big tough tools," Sonic teased, running it over more and more areas. Sonic pressed his cock rougher now. "C'mon, make me cum with your feet, Knuckles."

"AHAHAHA!" Knuckles cried out, because now Sonic had ditched the pinwheel entirely and was scrubbing his fingers all around Knuckles feet where the cock was not. It was beginning to be too much. Too much tickling. Too much torment. The cock on his feet was hotter and hotter. His feet ran up and down it as he was tickled.

Something strange was happening. His own cock was hard, and warm. It felt on fire, actually. Without anybody touching it he began to slowly run his hips up and down. His feet being tortured, the footjob, the teasing. It was all too much.

"Ahhh!" Sonic cried out. Hot, sticky seed burst onto Knuckles bare soles and went between his toes. Still, the tickling did not stop. The pumping did not stop. Knuckles knew he was about to hit a point of no return that he could not stop. He was gonna...

"Mmmm!" Knuckles cried out, and just as he did all of the tickling stopped. He came, hard, without anything but his feet being stimulated. Cum shot up and landed on his chest. Sonic froze, he froze. The effects of the orgasm made his entire body numb for a few seconds. He was gasping now, realizing just how exhausted he had become.

"Dude," Sonic said. "Did... you just cum from me only tickling your feet?"

"I-I dunno!" Knuckles said. He was lying. He had. His face was burning in embarrassment. "Maybe..."

"Dude, that was awesome!" Sonic said. "Holy crap, I didn't even know you could do that!"

Sonic reached forward, and touched Knuckles cock. He gasped, writhing slowly. Knuckles scrunched his feet where the cum from Sonic still lay.

The blindfold was removed, as was the rope binding his wrists. Knuckles sat up, and stared at Sonic who was now sitting over him. His grin was wide, and even impressed.

"Did I really?" Knuckles asked. "Cum from... being tickled?"

"Totally," Sonic said, laughing a bit. "I knew you liked being tickled, but man!"

Knuckles nodded slowly, a bit dumbfounded. He thought of all the dreams he had being tickled where he had woken up covered in his seed. It had started since the first time he saw Tails. He wondered if it was the special lotion, or just him. Was he really that sensitive on his feet?

"I-I wanna try again," Knuckles said, looking to Sonic. He couldn't help but admit to himself how exciting it was. "Can we?"

Sonic grinned.

"Obviously," He answered.