WARNING: Mature Content.

This is my first rated-M story, so please leave any comments if my writing style could be better, or if anyone wants another chapter.

There's more editing on this chapter, so it should be better than before.

Saturday morning.

Asriel groggily opened his eyes to see sunlight shine through the window in his bedroom. Well, his and Frisk's bedroom. Frisk was sleeping on the other side of the room, covered with a heavy blanket. Asriel yawned and sat up, looking at his alarm clock on his nightstand. It read 10:53am. Asriel grunted, got up, and shuffled to the bathroom, right next to their bedroom. He brushed his teeth and fangs to get rid of his morning breath. He then pulled out his cock, larger than average and bright pink, and took a leak into the toilet. He flushed and put his member back into his shorts. He wondered about how big was Frisk's when he opened the door, only to see Frisk standing in front of him. His long, tangled hair was splayed everywhere and his eyes were half-open.

"Mornin'." Grumbled Frisk.

Asriel left the bathroom as Frisk stumbled in and closed the door. He had peculiar feelings for Frisk ever since they went to the surface together, along with the rest of their family and friends. That was five years ago. Since then, Asriel developed a strong liking for Frisk and wondered if he had the same feelings for the monster. They were both seventeen years old now, with their birthdays a few months apart from each other. After Toriel adopted Frisk and raised him with Asriel years back, he couldn't help it but to have a growing affection for the human. He knows that Frisk sees him as a very close friend, but Asriel doesn't know whether or not if that friendship would blossom into something more… intimate.

He often fantasized about what it would be like to be in a relationship with Frisk. Asriel often thought of them playing together, tending the garden, cooking, drawing, and learning together. But for some reason, Asriel sometimes has perverse thoughts about Frisk. A cunning desire to touch him, feel him, kiss him, hump him…

Asriel shook those thoughts away as he walked into the kitchen, seeing a note from his mother. He read it.

"Sorry I couldn't make breakfast today, but there are some waffles in the fridge. I need to go to a book convention, and go to see Alphys and Undyne. After that, I will go get groceries, so don't expect me to be home until around 4:00pm. –Love, Mom"

He looked at the clock on the wall, it read 11:05am. He and Frisk would be all alone for around five hours or so. He didn't have anything better to do, so he grabbed the waffles from the fridge and put them in the toaster. He grabbed some fresh blueberries and butter and set them on the dining table, waiting for the waffles to be ready.

Alone with Frisk, he thought.

He was curious to know whether or not Frisk really liked him, but was afraid to pop the question to him. He sometimes fantasized himself and his friend make love in one of their beds. Hearing the creaking noises from the bedsprings as he pushed himself farther inside Frisk, licking his neck as the human he loves moaned loudly.

When Asriel masturbates, he imagines himself being positioned on top of Frisk, gently pressing his hips rhythmically against the human's bottom.

*Sigh* "But that's just a fantasy." Asriel said to himself. "That will never happen in real life." Frisk would be deterred from making love to his closest friend anyways. Asriel is a guy, and he is also a monster. It wouldn't make much sense for a male human to do such a thing with Asriel. Although for some reason, he felt it could still happen.

"Whatever." Asriel said. The toaster by then popped out the waffles. Asriel grabbed some tongs and put the waffles on two plates: one for him and one for Frisk. He got two cups out and filled them with apple juice. He set the cups and the waffles in an orderly fashion, at opposite sides of the dining table, along with utensils next to the plates. He sat down, poured some blueberries on his waffle, and started to cut it with a knife when Frisk stalked into the room where Asriel sat. Frisk's hair was combed, though slightly messy, and wore a t-shirt and shorts.

"Hi Asriel." Said Frisk. "Oh wow, are those for me?"

"Yeah, I made breakfast, mom just left to do some things." Said Asriel.

"Thanks. They smell delicious!" Exclaimed Frisk.

Asriel grinned as Frisk pulled out a chair and started eating. Asriel flickered his eyes from his waffles to Frisk while eating, thinking about the human sitting across from him. If there's one thing he liked about Frisk, it's that he's kind. He is easygoing and always had a smile in his expression, and whenever he beamed at Asriel, it seemed to warm his heart a little. He couldn't help it but blush slightly while eating his waffle. After he finished, he chugged his juice and took his cup, plate, and utensils to the sink. He walked to the living room, and sat on the couch, facing the TV. A few moments later, Frisk met up with him after he finished devouring his breakfast.

"So, what do you want to do today?" Asked Frisk.

"I don't know, watch TV, I guess?" Said Asriel.

"Umm… okay." Frisk answered.

He sat right beside Asriel and grabbed the remote on the table, next to a box of tissues. He turned on the TV, which showed a show with Mettaton singing and strutting away in his pink high-heels.

Frisk laughed and watched the concert, next to a smiling Asriel. As Frisk focused on the TV, Asriel stared intently at Frisk, seeing his happy, relaxed features on his face. Frisk didn't notice Asriel looking at him- he was absorbed with the techno music coinciding with Mettaton's pitches. Yet Asriel watched Frisk having a good time, with him. He is happy that he has a friend like Frisk right next to him, the friend that saved him so long ago from despair.

After the concert was over and Mettaton bowed to a screaming audience throwing flowers, Frisk switched the channel to a program that consisted of dancing. The human instructor on screen was teaching about how to do the waltz. Asriel's muzzle twitched as he brightened up with an idea.

"Hey Frisk, wanna dance?" Said Asriel, grinning.

Frisk looked at the monster. "Actually, when I think about it… yeah!"

Asriel stood as he extended a hand to Frisk, and the human grasped it. The human stood up, facing Asriel, who is an inch taller than Frisk. He positioned himself facing the handsome monster before him. He put a hand on Asriel's hip, and the other held on to his hand. Asriel put his free hand on Frisk's shoulder, holding it tightly.

"Okay class, we will need to know who leads and who follows." Said the on-screen instructor.

Asriel faced Frisk, and the human said, "You lead." Asriel nodded.

"So, the leader puts their right foot forward, and the follower puts their left foot back." The instructor explained through the screen.

Frisk instinctively put his left foot forward and accidentally stepped on Asriel's right foot.

"Oh, sorry." Frisk said, embarrassed.

Asriel laughed and reassured the human with a smile. "It's okay."

Throughout the instructions from the instructor, Asriel and Frisk managed to step correctly and eventually, without any mistakes, waltz. They started to go faster, hearing the 1, 2, 3, from the screen as they whirled around the living room, enjoying the dance.

Asriel felt light-headed as he danced with Frisk, who started to laugh while twirling along with the monster. "This has to be a dream." Asriel thought to himself. He gazed at Frisk, who closed his eyes, smiling peacefully; letting the monster lead him around the living room. His heart resonated with his love for his friend dancing with him, and unintentionally leaned in to press his lips against Frisk's.

For a brief second, Asriel could feel the heat of the human's lips, warming his muzzle.

Frisk instantly opened his eyes in shock and pulled away from Asriel. He let go of the monster's hand and walked backwards, regaining his balance after a few steps. Asriel realized what just happened and opened his mouth to say something, but no words came out. He startled Frisk, who was now looking straight at him. The human's stare was enough to make Asriel feel a lump pushing in his throat, constricting his airway from saying anything. He then crouched down and sat on the ground, and started to tear up. Asriel wrapped his arms around his legs and bent his head to his chest, trying to hide his face from Frisk's view. His long ears drooped on both sides of his head, covering his face even more. Asriel's stomach was knotted up in guilt and started to cry.

"Oh, Asriel, I… I didn't know…" Said Frisk softly. Turning off the TV.

Frisk sat down next to Asriel, indirectly facing him. The human grabbed one of Asriel's ears and started to rub it gently.

"Shhh… it's okay." Whispered Frisk. "I… I was just caught off-guard. Don't cry."

Frisk put his arms around Asriel while the monster transitioned his arms from his legs and put them around Frisk's torso instead. He buried his head in Frisk's chest, making his t-shirt wet. Frisk felt the monster's warm breath on his chest, and blushed slightly.

"Asriel." Said Frisk. "Do you love me?"

There was a long pause.

Asriel nodded his head, still pressed against Frisk's chest. Frisk gently placed a hand on the back of the monster's head.

"Then I love you too." Said Frisk.

Asriel sat up, face-to face with Frisk. "Y-you d-don't understand. I… I am deep in l-love with y-you. " Choked Asriel, trying to clear his throat. Frisk looked at Asriel's face, his eyes are still puffy. Frisk sighed and wiped away some of the tears from his face.

Frisk sighed again. "I know." He put both of his hands on Asriel's matted cheeks and stared deeply into his eyes, feeling the monster's hot breath blowing across Frisk's face, leaving a tingling sensation afterwards. The human lurched forward and pushed his lips against the monster's lips; the fur on Asriel's muzzle tickled Frisk's nose. He then opened his mouth and thrust his warm, wet tongue into Asriel's mouth, only to feel another beyond the monster's pointy fangs. He moved his tongue and circled Asriel's, moaning softly. Asriel responded with muffled moans of his own, sliding his own tongue into the human's mouth and brushing it against Frisk's. The tension started to become unbearable, and Asriel felt himself getting hard. He wanted this moment to persist forever, entrenched with kissing and slobbering.

Frisk pulled away from Asriel, much to the monster's disappointment. Frisk's cheeks glowed red, and a trail of saliva dripped from the human's mouth. Asriel blushed fiercely while peering into Frisk's eyes, feeling the throbbing sensation in his loins. Frisk shied down in embarrassment from Asriel's gaze, only to find the silhouette of Asriel's cock pressing through his shorts. The monster immediately noticed where Frisk was looking at and tried to cover himself with his hand, but Frisk grabbed Asriel's wrist. Frisk's other hand cupped the monster's cock, making Asriel jump. He made a small gasp while Frisk started rubbing him up and down, and gradually opened his legs to let the human have easier access to his pulsating member. Asriel started to moan while the human stroked him, and closed his eyes, feeling the exciting pleasure he felt from the human's hand. Asriel lay back on the floor while Frisk moved his hand up to the monster's warm, furry belly.

The human then slid his hand under Asriel's waistband, pausing to see a sign of permission before advancing. The monster nodded, breathing heavily, feeling the presence of Frisk's hand pressed against his abdomen. Frisk then pushed through under the waistband and caressed the monster's large, hot, twitching member. Asriel shuddered and his breathing became coarse. Frisk wrapped his hand around Asriel's cock and started to move it up and down. The monster groaned with pleasure as Frisk jerked him off. Asriel started to push his hips against Frisk's hand, feeling more pangs of pleasure. His heart beat furiously, moaning as Frisk intensified the speed.

Frisk was able to reach a tissue box next to the remote on the table while giving pleasure to a blissful Asriel. Frisk pulled out a tissue and pulled down Asriel's shorts, exposing his hot member to the cool air. The human wrapped the tissue around the head of Asriel's member, which is now throbbing red, covered by a smear of pre. Frisk kept fondling him until Asriel could hold it no more. The monster came and pumped into the tissue that covered his tip, moaning with pleasure. He flashed open his eyes after he orgasmed, breathing harder than ever. The monster looked at the human, who smiled at him. Asriel smiled back, and pinched himself to reassure that he wasn't imagining all of this.

"This cannot be a dream." Asriel breathed heavily. He looked at the human longingly, feeling a new, enticing spark lighting up their relationship.

"It's not a dream." Chuckled Frisk. Hearing Asriel's words.

Suddenly, Asriel sat up and pounced on the human, pushing him down on the floor. His fuzzy hands are on Frisk's beating chest. He looked down at the human, who is becoming redder than before. The monster bent down and gave Frisk an awkward, wet kiss. He leaned his face down next to Frisk, his mouth inches away from the human's ear. His own ear rested on Frisk's mouth, whose breaths warmed Asriel's long appendage.

"I want to return the favor." The monster whispered in Frisk's ear.

Frisk nuzzled Asriel's neck, jolting the monster a little. Frisk grasped on to Asriel's ear and quietly said, "Okay." To the monster. Asriel started to work down from Frisk's shoulder, trailing with his muzzle all the way to his chest, then to his belly, eventually reaching the human's hips. His mouth bit the human's waistband, pulling it down gently. Frisk's chest was heaving with each and every breath. His lightheadedness filled his mind with anticipation for what the monster would do next.

Asriel pulled down Frisk's shorts with his teeth, and found himself face-to-face with the human's member, roughly the same size as the monster's. Asriel looked at the erection, looking at a wonder he had never gazed at before. He gave a long, wet lick, which made Frisk moan loudly. The monster then opened his mouth, and quickly took in Frisk's cock. The human cried out in pleasure to the hot, slippery environment of Asriel's maw, and pushed his hips up against the monster's face.

Asriel never blew anyone before, but this experience was so… thrilling. The monster fantasized such situations with Frisk, but had never realized what making love was really like. He didn't care if Frisk was a guy, and he didn't care if he's human. Asriel only cared about the human's love for him, and the empowering relationship that guided them through the years. He enjoyed Frisk's moans, his breathing, and his cock sliding in and out of his mouth. He loved Frisk, and he wanted this moment to last forever.

Sometime later, Frisk grunted Asriel's name, and seed came pouring out, pumping forcefully into the monster's mouth. Asriel didn't taste cum before- it was a little salty, with a slight musk to it. Frisk's orgasm eventually ebbed away. The human got up and pulled his shorts up, hiding his glistening member. Asriel soon after stood up, tossed the soggy tissue in a nearby trash can, and looked at Frisk, smiling.

"How's that?" Said Asriel.

Frisk grinned. "Mmm… I really liked it. Well, gosh, you're pretty good at it! I never let anyone do that before, but that was… fun!" That comment made Asriel red and looked away from the human's face.

Then the human suddenly became serious. "I really do love you, Asriel." Said Frisk. "For some time now, even though I didn't act like it, I kind of… well… fell for you. I knew that you're a monster, and that you're male, but that doesn't mean that I wouldn't be attracted to you. I… I was too shy to confess my feelings for you."

Asriel looked at the human. "I felt the same thing, too. I just didn't know how I would express myself to you, too. I was worried that I would jeopardize our relationship, and I didn't want to tell you what I felt about you."

The human sighed, exasperated from the day's events. "I understand Asriel, and I constantly thought about it. But after that... Woah! I feel closer to you than I ever did in ages."

Asriel slowly grabbed Frisk's face with his hands and pressed his muzzle against the human's lips, feeling the eternal fire from that deep, passionate kiss. Frisk wrapped his arms around Asriel's frame, holding the monster tightly. After kissing, they held hands and walked to their bedroom, exhausted from their love making. They went to Asriel's bed, passing the bedroom window with the sunlight still shining through. Asriel and Frisk slipped under the covers and held on to each other, enjoying each other's company and warmth. Before Asriel closed his eyes, he saw his alarm clock, which read 2:48pm, relieved that his mother wouldn't barge in for some time. He snuggled against the human, who is now fast asleep. Asriel closed his eyes, and thought of the memorable times when he was with Frisk through the years.

And the monster drifted off, with remnants of a smile on his face.

Hope you liked this story! If you want more of this, ask me in the reviews. I might do hot, adventurous stuff with these two in later chapters, so please leave me some comments!