Chapter 1 - Having Some Fun Together

A cool autumn breeze blew its way through Hometown as both Kris and Susie walked along the sidewalk.

The day had been like it always was, school, then home to study. Nothing out of the ordinary for the monster-human duo.

While Kris wasn't the most talkative type, it just so happened that during that day in particular, Susie didn't have much to say either.

It wasn't until Kris reached behind himself into his backpack and pulled out a box of chalk that his friend said something.

"Yo!" Susie exclaims, snatching up the box of chalk and opening it, revealing the soft stone delicacy inside. Just as fast as she opened it, the monster girl popped one of the pieces into her mouth and gulped it down. "How'd you know I've been craving?" Susie asks, turning to the human.

In response, Kris simply shrugs his shoulders and continues to walk down the sidewalk.

"Just a guess, huh?" Susie asks, raising an eyebrow at her friend, all before a toothy smile begins to grow across her face. Despite rarely ever speaking, over the time that they had spent together, Susie had slowly been able to pick up on the meanings behind certain behaviors Kris did. With this certain random gesture of kindness only meaning one thing. "You think your mom's home?"

Almost instantly, Kris stops walking as Susie can see a chill run up his spine before he turns around to face her and shakes his head.

"Well, then, let's get going!" Susie smiles back at her friend before quickly snatching him up by his hand and running off down the road.

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Sure, enough, no car sat in the home's driveway, giving both Kris and Susie the go-ahead to do what they wanted to do.

Stepping inside the home, Susie takes a moment to survey the surroundings as excitement bubbles up within herself.

"Hey," Susie starts, turning to look at Kris, who looks back up at her almost anxiously. "Go get me some apple juice while I get comfortable."

Almost instantly, the human darts off toward the small home's kitchen while the monster girl walks over and takes a seat on the couch.

Even though their place was small, Susie really liked the place. It was better than hers, at the very least.

Leaning back, Susie reached over and plucked up a remote, and turned on the TV before beginning to flip through random channels.

Nothing good was on, but finding something to watch on TV wasn't her plan. Especially as Kris returned holding a glass of apple juice.

"Took ya long enough." Susie snarls as she snatches the glass away from the human, who only continues to stand there nervously.

After a few more channels, the monster girl ultimately settles for some random anime. Nothing crazy, but good enough for background noise.

Taking a sip out of her drink, Susie flashed an eye over toward Kris, who still continued to stand there, practically shaking in place.

"You know what? Maybe I'm not feeling all that up to it today." Susie says, enjoying how her words caused Kris to suddenly jump in place. Oh, how she loved teasing him whenever he got like this. He was so easy to play, which made him all the more adorable as a result.

"Yeah, I don't know. Classes just really dragged on and on. Doing it now just seems like too much." Susie continues on, watching as Kris trembles more and more. She loved it, seeing the only human in town hang off every word she said. It gave her a sense of power she hadn't ever really had before.

But, something Susie also learned during her time spent with Kris was the limit to push things.

"Although," Susie starts, changing her tune as she spreads her legs. A  sizable and noticeable bulge in her pants as she sits there, smirking smugly at the human standing before her. "Maybe you can do something to help change my mind?"

From where he was standing to kneeling between her legs, Kris darts his way over. The excitement Kris was feeling at that point was so obvious as he slowly extended his hand out and started to rub the covered length trapped behind Susie's jeans.

How they got to this point was still honestly surprising to Susie, even after all of the time that they spent together.

It was an honest mistake. Susie was in the bathroom, pulling her pants back up. But as it so turns out, on that day in particular, she forgot to lock the door. And so, as a result, who would come in but none other than Kris. Who then got a good look at the thing between Susie's legs.

After Kris quickly shut the door, and the two of them went their separate ways, things promptly grew awkward, with neither of them not really knowing how to interact with the other after such a discovery. It even got to the point that Susie began to think that she might've just lost her only friend in that town.

But come one day, out of nowhere. Kris approached the monster girl. Leading to a long and arduous guessing game on Susie's part as she tried to figure out what the human was thinking just based solely on a long series of small inferences and glances.

However, at the end of it, Susie managed to piece things together. Kris wasn't shocked or disturbed by what he saw. As a matter of fact, it was quite the opposite. With the monster girl coming to the finding that the goodie two shoes, human, was quite the pervert.

Not that Susie was complaining. As their relationship developed from there, she was more than happy to take things however far Kris wanted.

Which led them back to where they were now, with Kris continuing to rub at Susie's covered length.

"C'mon, you just gonna sit there playing with it all day?" Susie asks, raising a curious eyebrow at the human between her legs.

Getting the message, Kris soon undoes the button and pulls down the zipper to Susie's pants.

Slowly, he begins to pull down her pants far enough that her bulge finally pops out, now only covered by her underwear.

Then, lowering his head, Kris presses his nose and face against Susie's covered crotch and proceeds to inhale deeply.

The human takes in all the smells that he can as he inhales all the aromas that make their way off her crotch.

"You like the smell, do ya? Perv." Susie chuckles under her breath while Kris gets his nose right up against her balls. Sniffing deeply while looking up at her with practically hearts in his eyes. A sight that, while she would never admit to it, made her heart skip a beat here and there.

She had to admit Kris' personality really came out in times like these. Most of the time, he was a quiet shut-in who made conversations a lot harder than they ever needed to be. Not that she was complaining. When he was like this, it opened up a whole world of things for them to do.

After taking in the scent a little bit longer, Kris then shifts his mouth upwards and begins to suckle on the tip of Susie's covered length.

It was such an arousing sight. Seeing the only human and town suck on the head of her bulge through her underwear, Susie couldn't get enough.

"C'mon, get it out already." Susie urges Kris with a smile, looking down at his as he then flashes a smile at her before reaching up and grabbing the hem of her underwear before proceeding to slowly pull them down. Allowing her long thick purple cock to come flopping out and land across his face.

Getting right into things, Kris begins savoring every single inch of Susie's length. Lapping it around and eventually bringing his tongue down to the base of her balls and slowly dragging it up the bottom of it before licking up a pearl of pre-cum that began to ooze out of her tip.

Going from there, the human boy begins to suck at Susie's balls. Coating one of the plump purple orbs with a sheen of spit before repeating the same process with the other one. Eventually, leading up to Kris taking both of them into his mouth at the same time. A feat that he had surprisingly not taken all that much time getting himself able to do.

"Nggh, one of these days, your gonna have to admit it. You've had practice, haven't you?" Susie asks playfully, razor-sharp teeth glinting as the pleasure from having both of her balls sucked at the same time was slowly getting to her in the best way possible.

For his part, Kris only looked up at her longingly as he continued to spread his tongue all around her genitals.

Finally, after much anticipation, Kris raises his mouth up and takes the head of Susie's cock into his mouth. Softly suckling at it while continuing to gaze at the monster girl, who, in turn, had to hide her growing bashfulness at the bold human sucking her off.

Despite being as close as they were, Susie still had to play things cool with the human before her.

But with how skillful Kris was being with his mouth as he swirled his tongue around the tip of her length, it was becoming increasingly hard to do so. It was just the way that the human worked her cock. It was almost like he knew all the right things to do to get to her. However, she was not going to complain if it meant getting pleasured like she was now.

Slowly, Kris begins to descend his head down Susie's length. First, taking in about a quarter of the thing and then half of it, all before finally taking the entire member into his mouth, all the while maintaining perfect eye contact with Susie, who continues to watch him work.

"Seems all that practice really did do you some good, didn't it?" Susie smiles. This was far from their first time doing something like this. Long gone were the days of nervous hesitation on the monster girl's part as she worried about accidentally going too far and hurting Kris. Even then, the human proved himself able to take quite a lot all the way back then. But now, almost if not fully tuned with each other, they were able to do a lot.

After a few more moments, Kris finally begins to raise his head until only the head remains inside his mouth. He then repeats the same process, taking the entire thing into his mouth before pulling his head back up. His eyes continuing not to leave Susie's for even a second as he holds himself down longer every time his nose rests against the monster's girl's waist.

"Showing off, huh?" Susie playfully glares at the human between her legs. "How about this, then?" Susie then reaches out and grabs a handful of Kris' hair as he begins to pull his head back up, and instead of letting him get air, she forces him back down and keeps him there. She even goes so far as to extend out her legs and wrap them around his head, going above and beyond to make sure he stays in that position.

At first, he seemed fine. Almost expecting this sort of rough treatment from her. But as the seconds ticked by, the need for oxygen in his lungs grew stronger and stronger. Starting off, his eyes become strained before his entire face grows red as the massive purple cock sits in his throat.

Eventually, Kris couldn't take much more and tapped Susie on her thigh, giving her the signal to release his head and allow him to pull himself back up. Something that he happily does as he takes in deep breaths of air into his lungs, at the same time maintaining that lustful look in his eye aimed squarely at the monster girl.

"Not bad. Had to have been longer than last time." Susie comments. "But I'm guessing by now, your wanting the real deal, huh?"

Kris couldn't help but rapidly shake his head in response. His excitement being more than evident.

"Alright, then. You know what to do." Susie says as Kris backs off away from her as she stands up from the couch.

Reaching down, she fully undoes her pants and underwear, kicking them off to the side along with her shoes.

Concurrently, Kris reaches down and pulls off his green and yellow sweater before getting rid of his pants and shoes, leaving him only in his underwear. Then, without a moment's delay, Kris climbs onto the couch and dangles his head off the side.

"Dude, really?" Susie smirks, looking at the sexually excited human. Kris really was something else.

Letting out a small chuckle, Susie walks up and hunches over the couch, angling it so that Kris' head is directly in between her legs.

"You look pretty good down there." Susie chuckles, rubbing her cock across Kris' face, spreading the spit-covered contents around his features. Which he more than happily takes. "If anyone in town could see you now. The quiet, shy human, about to get his throat fucked by the big and bad Susie." The monster girl goes on to say, her sharp, shiny teeth sparkling as she looks down at Kris.

"What do you think your mom would say if she came in here and saw you like this? Realizing that her innocent boy is just a slut for monster cock." Susie continues to goad. But throughout it all, it only seems to make Kris more aroused.

Turning to look between his legs, Susie wasn't shocked to see his strained bulge trapped behind his underwear. The tip stained with his pre-cum.

But, without further waiting, the monster girl finally angels her hips into the right position, the tip of her cock in Kris' mouth, and with a final flex of her toned rear that caused her rear hole to wink, Susie sinks her hips down and thrusts her cock down Kris' throat. Her thick balls slapping over the human's nose and eyes.

Almost instantly, a harsh gag rips itself out of Kris' throat. But Susie wasn't worried. He was well trained and practiced at this point and was able to take all sorts of harsh treatment that she was able to dish out toward him.

As a result, Susie didn't take long to slowly pull her cock back out of Kris' throat. Stopping until only the head of her member was in his mouth before ultimately quickly slamming her hips back downward, spearing her cock right down into his gullet.

Starting off slow, Susie took the time to really enjoy Kris' mouth. How it perfectly squeezed tightly around her rigid member as she slid and slammed it up and down his throat. Their relationship getting to this point, it was something that she would've honestly never expected, but she was more than happy that things progressed to where they were now.

And Kris himself seemed to be happy about it too. That stain in his underwear showing his own arousal slowly getting larger and larger as Susie increased the speed at which her hips were moving. Going from a slow and somewhat steady pace, to a faster medium faster, all before ultimately culminating in her diving her hips back and down in a quick and speedy manner.

A satisfied grin plastered itself across Susie's face as a thin line of drool began to fall down from her lip. It all felt so good, both satisfying in how Kris' throat felt nicely wrapped around her cock, and the mental satisfaction of being able to fuck the only human in town.

Deciding to tease Kris even further, Susie switches her pace from rapid-fire pistoning movements of her hips to powerful, strong slams down his throat before settling for a few moments and then slowly dragging her hips back up and repeating the same process all over again. Giving both herself and Kris a chance to really feel things out.

"Could pop your head like a watermelon with my hips alone. Would you like that?" Susie asks as she squeezes her muscled hips around Kris' head. Something that she knew from a good amount of experience that he loved.

And even though he didn't say anything or make any movements to indicate as such, his constant silence beyond his gargling and gagging spoke more than enough as to his opinion on such rough and almost brutal treatment.

"Perv." Susie chuckles quietly under her breath before returning to her rapid-fire pace of hip thrusting. Practically gliding her cock in and out of Kris' throat as she slammed her hips up and down, continuing to fuck his gullet and absolutely revel at how good it felt.

But as Susie continued, she couldn't help but feel that familiar feeling at the base of her balls as it slowly built itself up inside her.

"Get ready, freak. I'm about to burst." Susie snarls as she speeds up her thrusting. Moving her hips and thighs faster and faster, she slowly built herself up as far as she could go before finishing. Simultaneously, making sure to enjoy every aspect of Kris' mouth.

At that point, Kris' face was beyond a sloppy mess. Even though he was more than capable of mitigating certain messes that may come from having his face fucked. With how fast Susie was moving, plunging her cock in and out of his throat, her thick balls slapping his face. Sometimes there were situations that went beyond what he was able to do.

Just right around the corner of finally having her orgasm, Susie raises her hips one last time and brings them down onto Kris' face. After which, she begins to unload thick bursts of cum directly down his throat into his stomach. Her thick balls twitch in pleasure against Kris' face as the process occurs.

"Oh, yeah...." Susie groans out, her tongue lolling out of the corner of her mouth as she continues to feel Kris suck on her cock as she orgasms.

Finally, once she finishes, she slowly pulls her member out of Kris' mouth with a satisfying pop of his lips.

"Swallowed it all, huh?" Susie says, looking down at Kris and noticing not a speck of cum left across his face.

In response, Kris only smiles back up at her. Coming off in a way that may or may not have been goading the monster girl.

"Smug little...." Susie starts, still smiling, as she grabs Kris off of the couch and throws him back onto it face first.

Reaching out, Susie pulls off his underwear, finally letting his trapped cock free.

Then, in another swift moment of movement, Susie pulls off her shirt and jacket, revealing her bra-covered breasts, which she also quickly removes. Letting her semi-large dark purple covered breasts and her even darker purple nipples free.

"We'll see how confident you look after I do this." Susie leans her head in close to snarl into Kris' ear, causing a shiver to rack up through the human's body as he still smirks back at her. Absolutely enjoying the treatment he was receiving from Susie as she began to push the head of her cock against the entrance to his puckered asshole.

It took a fair amount of effort, but with Susie's strength, she was more than able to slowly push the head of her member inside. Causing the once mostly subdued human to bite his lip as his eyes nearly roll back in aroused pleasure.

"Hope you can take it, 'cause I have got a lot to give." Susie says, sounding smug herself now as her toned, muscled hips slowly approach Kris' smaller ones. The tightness of his rear sending waves of hard sparks of pleasure coursing through her body as she pushes in inch after inch of her cock.

"A lightner, taking it up the ass. Wonder if that's in that prophecy?" Susie remarks, just about to push the rest of her cock into Kris' asshole. 

At the same time, as the words leave Susie's mouth, a heavy dribble of pre-cum leaks out of Kris' cock.

Pushing further, Susie's hips finally meet Kris' own, the monster girl having fully hilted herself inside of the human's ass.

A slow groan leaves Susie's mouth, followed by a huff of air from her nose as she settles herself. After all of that build-up leading to this moment, she wanted to take the time to really enjoy Kris' interior walls and how his ass squeezed her cock like a warm and soft vice in the best way possible.

It all felt so good. The tightness of Kris' ass was perfect. Giving Susie the perfect experience as she finally sunk her hips as far as they could go. With her hips finally coming into contact with his rear, and her balls coming to rest against his, showing the fact that she had fully inserted herself deep inside him.

"You ready for this, nerd?" Susie whispered into Kris' ear, wanting to make sure he was ready before she started.

An eager nod from Kris was all that she needed in response before her muscled rear went tight, and she suddenly pulled herself back, only stopping once the head of her cock was the only thing inside of him before just as quickly slamming her hips back forward.

The sudden pressure being slammed up against his sensitive prostate causes Kris to gasp before he suddenly bites down on the couch cushion his face was being pushed into. The pleasure, it was powerful, nearly causing his cock to explode right then and there as his toes and fingers curl into tight balls.

Long gone was the slow and easing tension of Susie pushing her hips forward as they were now replaced with the rapid-fire ass reaming that she was delivering into Kris' tight ass. Pistoning back and forth and slamming all around the interior of his rear, providing her a great amount of pleasure.

"Oh, yeah. Just as tight as ever." Susie groans, letting out a slight huff as she continues to fuck Kris. When she started going at his rear, she just couldn't help but lose herself to how good he felt wrapped tightly around her cock.

Out of all things, Susie was the most nervous when they tried having her going at his ass for the first time. With it being a generally more nerve-racking experience as she didn't want to hurt the smaller human she found herself hanging out with a lot.

Even though, at that time, Kris had gotten himself to be pretty capable with his mouth. Susie was still a little unsure about the whole thing. That wasn't to say that she wasn't open to the idea. There had been times she had caught herself looking at her friend's rear.

But after receiving enthusiastic amounts of consent from Kris, along with Susie making sure he would tell her if it was too much. They went at it.

Things started off a little scary at first. Even after applying a lot of lubrication, Susie wasn't sure how she was going to fit herself in there.

It wasn't until after Kris gave her a look that told Susie that he trusted her that she started to push herself in. First, going in slow and carefully, making sure not to move things farther than they should go, but once they had both found their rhythm and were comfortable enough, things only began to speed up from there.

Ultimately, it was a nice experience. A medium-paced adventure that explored their limits together.

Which is a far cry from what is happening currently. With Susie brutally fucking Kris' ass while Kris himself took it like an over-eager whore.

Susie worked herself over like a machine, pounding her hips down and causing her thick purple balls to slap against Kris'. Her larger frame allowing her to nearly completely cover the human's body with her own as her large purple breasts pressed down into his back.

Kris' cock strained tightly. With every thrust aimed directly up his tight ass, electric sparks of pleasure flew through his body. Nearly overwhelming his brain in the process as he felt helpless under Susie's barrage in the best way possible. Nearly making him have trouble keeping up with how much was being done to him and his rear.

But just as things were starting to reach a pitch higher than they were already going, there was a knock at the front door.

Almost instantly, the both of them stopped. Hearts jumping into their throats as they turned toward the entrance.

Again, whoever was ever on the other side of the door knocked. Adding an extra level of dread to their current situation.

Scrambling, Kris pulls himself out from under Susie and makes his way over to a window, and peers outside.

Turning back, the human then raises both of his hands to his head and makes them look like horns.

"Noelle? What is she doing here!?" Susie questions nervously, getting low herself on the off chance that the reindeer girl might be able to see her.

Shrugging, Kris turns toward the door and slowly goes to open it. Causing the monster girl to scramble and hide behind it so that she won't be seen.

Taking a breath to compose himself, Kris grabs the doorknob and turns it before opening the door a crack and sticking his head outside.

"Hey, Kris!" Noelle says happily to her old childhood friend. Luckily not seeming to notice anything out of the ordinary. "I was just wondering if you've seen Susie around? I meant to talk to her after school about something, but I can't really find her anywhere." Noelle asks, a worst-case scenario considering the fact that, yes, Susie was, in fact, around, but not currently in a state that the monster girl wanted her to see her in.

Luckily, Kris only shakes his head back toward Noelle. But at the same time, shakes his naked butt toward Susie, who quickly notices.

"What are you...." Susie mutters under her breath as she watches Kris shake himself. Was he really trying to get her to do him now of all times?

She was into it. They hadn't really done anything like this before, but Susie wasn't entirely opposed to the idea.

Especially with how smug Kris seemed to be about it. Continuing to wave his rear at her, almost goading her to go for it.

Reaching out, Susie grabs Kris by the hips and presses the head of her cock into his asshole.

"Oh, well. That's ok." Noelle says, looking slightly disappointed before turning back toward Kris. "Would you mind if I came in?"

At that moment, as Kris shakes his head, Susie lurches her hips forward, piercing her cock into Kris' asshole with a rough shove. Causing him to jump and for his red eyes to suddenly go wide as he's once again filled by the monster girl's massive cock.

"Kris? Are you alright?" Noelle suddenly asks, looking concerned for her friend, who seems to be acting strangely.

Very quickly, Kris nods his head, trying to play things cool as Susie begins to slowly thrust herself in and out of his asshole.

Despite being a literal door away from being exposed, Susie began to get back into the rhythm. Swinging her hips back and forth to collide them up against Kris' while at the same time making sure not to push things too far and risk Noelle having the shock of her life. Overall, she put her trust in Kris to play things as cool as possible. He always had a way with words, or lack thereof, to be more exact.

"Do you want me to go find your mom or something? Maybe she can help you." Noelle offers, watching as Kris strangely moves back and forth.

Almost a little too quickly, Kris shakes his head. That idea alone was something that he dreaded almost just as much as the situation he was currently in with Noelle. Acting awkwardly while sticking his head out of a door while their mutual friend plows him up the rear.

"W-Well, ok, then. I-I guess I'll see you later." Noelle says, feeling slightly awkward as she looks at Kris.

Kris, at times, proved to be quite the strange friend, but she didn't mind in the least.

Happily, Kris goes to nod his head but soon finds himself about to cum as Susie speeds up her thrusting. Causing him to clutch onto the door awkwardly as he feels the orgasm slowly rise up within himself. He knew full well how weird he must've looked at that moment to Noelle, but he didn't really care as Susie's thrusting finally reached its peak, and she began to cum inside him.

At the same time, Kris' cock also explodes into an orgasm as the head of his member shoots out loads of cum down across the floor. Something that felt so powerful to the human that he couldn't help but bite his lower lip to stifle any noise that might make its way out of him as his eyes began to roll into the back of his head.

Eventually, Susie and Kris both finally finish. With the former of the two slowly sliding her cock out of his ass. Leaving the latter a panting mess as he turns to look back at Noelle, ready to face whatever she might've thought of him at that very moment.

Noelle, for her part, was gone. With Kris not even knowing when she left, but wasn't all that bothered by it while he closed the door.

Limping slightly, Kris walks over and takes a seat next to Susie on the couch. Who looks just as spent as him.

"So...." Susie starts, eyes looking around the room before ultimately turning toward Kris. "You wanna go again?"

Kris, as always, doesn't say a single thing as he turns to his close friend and gives her a nod. He then leans over and rests his head on her leg.

"Alright, maybe just a few minutes to catch our breaths." Susie sighs. All before resting back herself on the couch and laying a hand on Kris' head.

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Hope Ya'll Enjoyed It!~