Chapter Text
+1 -
Isaac saved a witch from a rogue omega.
That's where it all started.
A few days before that night, a witch came into the Hale territory, asking for help. She was being hunted by a pack of rogue omegas. Derek - with the persuasion of Stiles - offered her his and the packs aid.
The witch was called Honey - she was a short woman with long ginger locks that curled naturally against her pale freckled skin. She was sweet and smart but could be a bit ditzy.
The night it happened, the rogue omegas found the Hale territory and surrounded them. Derek had ordered his pack to stick together and fight for the territory and so that’s what they did. Omega blood was shed and many were killed, the others ran.
Stiles was at Derek’s side, his trusty bat in hand as he swung for the remaining omega that pounced. Derek roared, going in for the kill but the omega flipped away and headed straight for Honey.
The thing about Honey was that she wasn’t a witch good in combat. Her knowledge and power was strictly on the topic of herbs and potions. She didn’t have anything on her to help as an angry blood-hungry wolf came sprinting towards her.
It was Isaac who blocked the wolf’s path, standing brave in front of Honey, his own roar on his lips. The omega didn’t seem bothered and went to her new target, slashing her claws into Isaac’s chest.
Derek growled, running to his pup and jumping on the omega, holding her down as he sank his claws into her throat, ripping out her windpipe.
Stiles went to Isaac, cupping his face, “Are you okay, puppy? You hurt?” Stiles looked down and saw that his scratches were already healing and nothing was wrong.
Due to the intensity of the battle, ‘Little Isaac’ came out, making his way into Stiles’ embrace, nuzzling him as he said, “‘M ‘kay. Not hurt, Mama.”
The name ‘Mama’ was still new to Stiles but he didn’t mind it. He just held Isaac tighter.
Derek came up and nuzzled Isaac’s hair, “You were so brave, pup. Good job.”
Honey went to them and placed a single hand on Isaac’s cheek, “Thank you so much, sweetie. You saved me.”
Isaac let out a nervous giggle, playing with his fingers as if he was suddenly shy of the attention.
“You have such a young soul.” The witch said, glancing at the Alpha, “He’s a child.”
“He age regresses.” Stiles explained.
The witch shook her head, “No. It’s something more. It’s as if his soul is a child, begging to be free. He longs for a restart, a different childhood.”
“He has said that he wanted to be a ‘real child’ before.” Derek said, “He is nearly always in a regressed state, only ever ‘Adult Isaac’ when he’s in public.”
“That’s because he longs for the chance to be young again - in not only mental form, but physical.” Honey then nodded towards Isaac, “I can help you, Isaac.”
The blond’s face lightened like a butterfly, finally seeing sunlight after spending weeks in a confined cocoon. “Really?!”
Honey smiled, looking at Derek and Stiles, then back to Isaac, “With your permission, I would like to give you a gift… as a thank you for saving my life.”
Derek and Stiles were in the kitchen.
Stiles was pacing the floor as Derek watched. He was chewing his thumb and looked nervous.
Derek went and stopped him, putting his hands on the smaller man’s waist.
“How do you know this will work?” Stiles said, quietly, “What if it doesn’t work and Isaac’s hope is lost. What if something bad happens? What happens if the potion backfires?”
Honey had told them that she can brew a potion that would make Isaac transform back into a child. Isaac was bouncing off the walls in excitement and the pack were happy seeing that Isaac’s dream can officially come true.
Honey was brewing the potion at that moment as Derek reassured a worrying Stiles.
“Everything is going to be okay, Stiles.” The Alpha said, smiling, “Isaac is going to be a true kid again. He's going to get to grow up surrounded with nothing but love and comfort. He’ll have the family he’s always wanted.”
Stiles breathed deeply, putting his hands onto Derek’s chest, feeling the muscle that lies there, biting his lower lip as he looked at Derek, “And he’ll have a loving father he’s always wanted too.”
Derek’s chest rumbled happily, nudging Stiles’ nose with his own as he teased, “And a loving Mama.”
Stiles shared a chuckle before kissing Derek’s lips sweetly before asking in a whisper, “Isaac’s going to be a real child soon. We’ve got this, right?”
“You and me. Together. We’ve got this.”
They kissed again, resting their foreheads against one anothers.
“We’re gonna be great parents.” Stiles smirked, making Derek’s chest purr. The sound made Stiles gasp, “Oh my god! Are you purring?! That’s adorable.”
Derek sighed, letting his head fall down onto Stiles’ shoulder in defeat, “Shut up, Stiles.”
“Come on, adora-wolf,” Stiles chuckled, hitting Derek’s chest playfully, “Let’s go see our pup.”
Derek’s stomach rattled with butterflies when hearing those words and was left to follow Stiles out the door.
Honey gave Isaac a mug full of glowing blue liquid. He cradled the mug carefully and stared into the cup.
“This potion is irreversible.” Honey said, “But the potion will only work if the person who consumes it actually wishes for it. When you drink this, Isaac, you will fall to sleep and wake up as a young child.”
“How long will he be asleep? Are there any side effects? Will he remember us when he changes? Will he be a werewolf? A human? A hybrid?” Stiles blurted out question after question.
But Honey didn’t seem annoyed. She just smiled and answered, “He will be asleep for around ten to fifteen hours. No life threatening side effects, just sleepiness and a little achy. Nothing major. He will remember all of you and all that has happened but his past memories will be… foggy. - as if it were all a dream. And he will still be a werewolf.”
Stiles nodded, accepting the answers.
Derek reached over to take Stiles’ hand, giving it a squeeze, before looking at Isaac.
“Are you okay, pup?”
The pack surrounded them, watching as Isaac smiled with happiness misted in his eyes.
“‘M ‘appy.” He told the Alpha, then looked nervous, “P-Promise me you’ll take care of me.”
Derek knelt in front of his pup, Stiles following in his action and the two rubbed at his arms in assurance.
“Always, Isaac.” The Alpha confirmed, heart filled and eyes radiating love, “No matter what age you are, no matter what species or identity… we will always take care of you. And if this is what you want, we are with you all the way.”
Stiles nodded in agreement, fluffing up Isaac’s hair, “You’re ours, puppy. We promise to always love and protect you.”
Isaac smiled, looking at the pack and Honey before lifting the cup and gulping down the liquid inside.
Stiles took the empty mug from Isaac and placed it on the coffee table as Derek sat beside Isaac.
Isaac’s eyes started to glow blue, eyelids blinking heavily. Derek reached for the pup, placing his head in his neck, allowing Isaac to lay on his chest. Isaac snuggled down, happily sighing as he let his eyes close. His breathing evened out and his limbs became heavy. Stiles collected the blanket that was thrown over the couch and draped it over the two, running his fingers through Isaac’s curls before turning to Honey.
“Thank you.”
She smiled, “No need. He saved my life and I wanted to do something for him. He’s a good kid.”
Erica and Lydia then went to Stiles and looked rather excited.
“What?”
“Because Isaac isn’t gonna wake up for another fifteen hours, Erica and I were thinking about taking the new mama bear shopping!” Lydia exclaimed.
Stiles grinned, “Shopping?”
“For baby stuff!” Erica whooped, “He’s gonna need a lot of stuff.”
“Shit. You’re right.” Stiles then looked back at Derek and a sleeping Isaac.
Derek waved his hand, smiling brightly, “Go. We need to be prepared. I’ll stay with Isaac.”
Stiles nodded, kissing Derek on the lips, “I’ll be back before he wakes up.” He then kissed Isaac on the forehead and picked up his car keys.
Derek gave Erica his credit card and Scott, Allison and Boyd were putting on their shoes to get ready for the shopping trip. All except Honey, who was looking awkward, hugging herself as she looked around the room.
“Wanna come, Honey?” Stiles asked.
The witch’s face lit up, nodding enthusiastically, “Yes please.”
The pack all waved goodbye before walking out the door.
Five and a half hours later.
It’s 9pm. The shopping centre is closing and the pack had bags and bags of all the necessities for a one year old. - also a few non-necessities which Stiles had to rip Derek’s credit card out from Erica’s grip when finding her spending the Alpha’s money on something as inconvenient as a plastic kitchen for kids.
They drove home - Stiles, Honey, Erica and Boyd in Stiles’ jeep while Scott, Allison, Lydia and Jackson were in Scott's car.
When they arrived back at the Hale house, they all staggered inside, everyone carrying at least four large bags of stuff. Derek watched from the couch as they moved in like a flock of birds into the living room.
The Alpha had not moved from his spot, keeping a now younger looking Isaac against his chest. He didn’t look like his usual eighteen year old self. Instead, he looked about fourteen. It was freaky.
The pack got everything ready. Jackson and Boyd took to building furniture for the pup’s new room. Erica and Lydia went around the house, baby proofing while Honey went to stock up the fridge and cupboards with baby food, formula and toddler friendly snacks.
Stiles was sitting on the floor beside Derek and Isaac, showing Derek all the clothes and toys he got for Isaac - folding the clothes and placing them in plastic bins to keep them neat and tidy.
Derek swore he had fallen head over heels in Stiles all over again when seeing him show off all the wolf themed baby clothes he had got for their pup. Their pup.
Stiles truly had gotten everything.
Clothes, blankets, pillows, diapers, pull ups, a cot, bookshelf, kid friendly books, toys, games, bubble bath, bath toys, powders and creams and so much more.
“I also got something for you, big guy.” Stiles said to Derek. He had a black t-shirt in his hands and when he unfolded it and showed Derek the front, it made the Alpha’s heart stutter. It had the words ‘Daddy Bear’ on it with the silhouette of a bear underneath.
“And I got one for me and Isaac too.” Stiles’ shirt had ‘Mama Bear’ while Isaac’s had ‘Baby Bear’ on it.
Derek could’ve cried.
He nearly did.
Once everyone was done and Isaac’s new room was ready (though not completed) for Isaac to use, it was one am and everyone but Stiles and Derek had gone to bed. Isaac had now the appearance of a ten year old. His face is smooth and youthful and his clothes are now too big for his shrinking body.
“We should get him into bed.” Stiles suggested, “Maybe get him out of his clothes so they don’t hurt him during the entire ‘Honey, I shrunk the kids’ moment.”
Derek agreed, lifting Isaac up.
When Derek saw Isaac’s new room, he felt a sense of calm and happiness.
He had known how much Isaac had struggled with his regression and that his true desire to be a child was something that Derek could see no matter how hard Isaac tried to hide it.
In Isaac’s old room, Derek could spot the plastic dinosaurs he hid under his bed, the colouring books he had tried to cover up by burying them underneath his ‘normal adult’ books and the baby blanket he had stuffed under his pillow, out of sight of anyone who didn’t have super eyesight.
But now…
Now Isaac had everything he ever wanted.
A crib in the corner that had removable bars for when he got older. A bookcase filled with brand new colouring books and picture books filled with cheesy child-friendly stories. Boxes filled with clothes and bibs and diapers. A potty in the other corner. A dinosaur mat on the floor with new toys waiting for him to play with.
A Wall.E poster was framed on the wall and fairy lights were strung up to act as nightlights.
“Woah.” Derek breathed, looking around the room.
Stiles was in the middle of the room, an anxious smile on his lips, “Do you like it?”
Derek stepped towards him, bending to kiss Stiles’ cheek, “I love it. You did amazing.”
“Okay, sappywolf.” He giggled, going to the crib and pulling back the blankets to make room for Isaac, “Come and put our puppy down so we can go to bed.”
Derek did as he was told, carefully laying down Isaac, tugging off his oversized clothes before putting the thin blanket just over his lower half to keep the draft away.
He turned to Stiles, “We’re parents.”
The statement was insane… yet it felt right.
Stiles just smiled, fisting Derek’s shirt to pull him closer, “We are.”
Derek wrapped an arm around him, burying his nose in his hair and taking a relaxing breath.
“I’ve always wanted to be a dad” he said, cupping Stiles’ cheek as he turned his head. “And I’m so grateful that I get to do this with you.”
He leaned his head forward, their foreheads resting together as Derek pressed his lips to his boyfriends. The smaller man hummed, kissing back as he gently wrapped his arms around Derek’s waist.
“Who would’ve thought that Derek Hale could be so romantic.” Stiles said between kisses, making Derek huff.
“Shut up.”
“Make me.”
Derek flicked on Isaac’s fairy lights, letting the soft glow radiate the room. He then kissed Isaac goodnight, turning the main light off and then proceeded to lift Stiles up and over his shoulder before going out of the room.
Stiles had to cover his mouth with his hands as he giggled, to keep the noise to a minimum.
Derek made it to his room, he closed the door behind him before throwing Stiles down onto his bed.
Derek crawled on top of him, kissing him deeply. The Alpha’s hands gently pushed up Stiles’ shirt to reveal the creamy white skin that it hid, making Stiles’ breath hitch.
“Is this okay?” Derek asked, his voice so soft it was nearly a whisper.
Stiles’ face was bright red, but he nodded, biting his bottom lip as Derek’s hands pushed up higher, pulling Stiles’ shirt off over his head.
Once bare, the Alpha gently took his boyfriend’s hands in his, bringing them to his lips and kissing across each of his knuckles. The look Derek was giving him made Stiles want to combust from the intensity, the emotion so raw it made him hot inside.
Derek’s eyes raked up and down Stiles’ body, taking in every mole and beauty mark that he had, trying to memorise each and every one.
He spread his large hands across Stiles’ abdomen, watching as the muscles tensed underneath his touch. He watched, entranced, as Stiles’ body shivered as Derek slid his hands up to Stiles’ chest, his thumbs brushing against his nipples.
“Hm,” Stiles’ breath trembled at the touch, his teeth biting into his bottom lip as he looked down at Derek’s hands.
This is their first time.
They had their first kiss just a few weeks ago and with most of their time looking after Isaac, they haven’t had much time with just the two of them. They’ve been on some dates, and they have been wonderful, but this is the first time Derek had got to touch Stiles more than just a simple caress.
“You sensitive here, baby?” Derek asked, a teasing smirk on his face, “Good to know.”
“D-Der,” He breathed out, his fingers digging into Derek’s biceps as he began to squirm a bit under the Alpha’s weight.
Curious, Derek gave his nipples a firm pinch, making Stiles gasp loudly. “Ah!”
“Fuck, you have no idea how sexy you look right now, Stiles,” Derek breathed out as he dived down to capture Stiles’ lips in a hungry kiss, subconsciously rolling his hips as he did so, causing Stiles to roll his hips upwards to meet halfway. The Alpha continued to touch, pinch and love on Stiles’ chest, biting at his bottom lip as he kissed and licked at him.
The two could feel themselves getting more and more desperate, Derek could barely pull back enough to rip his own shirt off his head and toss it to the side before diving back in to kiss Stiles.
“Der. Derek.” Stiles gasped, running his own hands across the wolf’s god-like abs. Every bump and crease just made Stiles even more hot and bothered. Fuck. He wanted to like them.
Derek soon began to kiss down his throat, pausing every so often to suck a dark hickey or leave deep bite marks into his skin, things that seemed to make the man beneath him quiver and whine.
Stiles’ fingers dragged across his back, leaving delightful red lines behind as Derek bit into his shoulder before licking across his clavicle. Derek began pressing kisses down his chest before trailing over to his nipple and sucking it into his mouth.
“Ah! Derek!” Stiles gasped out, pleasure causing through him, his thighs trembling.
Derek looked up at his boyfriend as he sucked on his nipple, relishing in how he made the smaller man come undone so easily. It made the wolf in him start to stir up and howl in pride.
“The way you moan my name,” Derek groaned, his eyes flashing red as he circled his fingers around his right nipple, making Stiles’ body twitch, “You sound fucking amazing.” He praised, reaching down to suckle the nipple, which was red from the constant attention.
“D-Derek! Fuck, ah!” Stiles cried out, arching his back.
Derek growled, bucking his hips down into Stiles’.
Mine, mine, mate, my mate, mine. His wolf was screaming at him and it made his hands itch, his claws wanting to come out.
“Derek, please.” Stiles whined, his fingers trailing up into the Alpha’s hair and tugging on his locks. “P-Please!” The noises that were leaving his mouth made Stiles burn with embarrassment, while they made Derek burn with utter arousal.
Derek kissed up his neck as he started to flirt his fingers across the waistband of Stiles’ jeans.
“Can I?” He asked as he lifted himself off his lover, gently kissing one of the already darkening hickies he left behind.
“Y-yes, please, yes, Derek,” He whimpered.
Derek didn’t need to be told twice. He pushed beneath Stiles’ waistband of both his jeans and underwear, his fingers carding through the neatly trimmed curls that lie there. Stiles gasped and held onto his boyfriend tighter, his body tensing up in anticipation.
“Relax, baby,” Derek cooed softly, kissing the space beneath his ear as he wrapped his warm hand around Stiles’ cock, making him choke on a whimper.
“Ah! D-Derek, ah! Oh, fuck!” He cried as Derek’s thumb swiped over his leaking head, using the precum to aid the slide up and down.
“You like that, baby?” Derek asked, pressing his smirk into Stiles’ neck. “Like my hand on your cock?”
“F-feels so good, Der, ah! M-more, please” He moaned, beginning to roll his hips up into Derek’s soft, warm fist. “I-I want-”
“Want what, baby?”
“I-I,” he stammered, his cheeks turning bright red. “I want, I-I want to see y-your...” He trailed off. Derek’s smile widened as he looked down at his boyfriend.
“You wanna see my cock?” He cooed as he pressed his sticky thumb to Stiles ’s lips, prompting him to stick his tongue out to taste himself.
“Mm,” Stiles hummed around Derek’s thumb, his eyes dark and clouded with lust.
Derek couldn’t hold himself back. He growled. And the sound made Stiles’ cock twitch.
The Alpha pulled his hand away and hurriedly pulled down his own pants and underwear, allowing their members to spring freely.
Stiles looked down and moaned out.
Derek was big.
Because of course he fucking was.
Much bigger and thicker than himself and the size difference made his head swoon.
Derek took his hand and wrapped it around their cocks, making Stiles whimper as he gave them a squeeze.
“Derek!” He gasped out as he hid his face in Derek’s neck, able to feel the wolf’s racing pulse against his lips.
Derek groaned, his hips bucking into the grip, lips seeking Stiles’ once again.
As they continued to kiss, Derek ran his hand down Stiles ’s body, past his member and between his thighs before gently dipping down to tease at his puckered hole.
“Oh,” Stiles ’s breath hitched and bit on his bottom lip.
Derek reached over to the bedside table, fishing the lube out from the drawer. Once he’s got it he looks back at a flushed out Stiles. The wolf smiled and slapped Stiles’ thigh playfully, but he wasn’t prepared for Stiles’ reaction. As the human’s flesh wiggled due to the impact, Stiles let out a beautiful musical moan. When Stiles realised the noise he made, he covered his mouth as he felt his face erupt with heat while he stared up at his boyfriend with wide eyes.
Derek could feel his cock twitch in excitement, reacting to the sound. His wolf is going crazy.
“Fuck, baby,” he smirked down at his blushing boyfriend, reaching his hands out to aggressively rip off Stiles ’s pants and underwear, leaving him beautifully naked beneath him. Once he was completely exposed, Derek put his hands on either side of Stiles’ head after he wrapped the human’s legs around his waist, cradling his hips in his lap. “Spanking, huh? That’s something we’re gonna have to explore.”
Stiles’ blush grew bigger, muttering, “You dick.”
“Don’t act like you don’t love it.” Derek said, opening the bottle of lube and slicking up his fingers.
“Yeah, yeah, I bet you would just— Ah!”
He slid his finger inside his boyfriend with surprising ease.
Stiles kept moaning, wrapping his arms around the other’s neck. Derek kissed every part he could reach as he pumped his finger in and out of Stiles’ hole.
“You’re not as tight as I thought you’d be. Tell me, baby, have you ever fucked yourself with your fingers before?” Derek groaned huskily into his ear as he slipped a second finger inside with only a bit of resistance.
“I, um,” Stiles stammered, “Y-Yes. I h-have.” he admitted shyly.
“Fuck,” He whispered as he resumed curling and scissoring his fingers inside of Stiles, making him let out a loud whimper. “What were you thinking about? Did you think about me?”
“I-I- Ah!”
“What was that? Speak up, baby.”
“I-I thought about your fingers… inside me.”
“Just my fingers?”
Stiles shook his head, eyes filling with tears as his entire body vibrated with pleasure, “A-And your cock. I would fuck myself thinking about you pounding into me… during a full moon and your half shifted and you can’t control yourself."
“Fuck.” Derek was very close to losing control of his shift, his eyes blazing red.
“Mm, D-Derek, more, please,” He cried out as Derek’s fingering grew rougher, making Stiles’ hips buck up to the contact.
Stiles felt as if his entire body was on fire, his insides felt all stirred up and hot as Derek slipped in a third finger, this one causing a bit of stinging pain but it felt so fucking good.
He looked up at his lover with an adoring smile, his thighs shaking, “F-Feels so good, Der.”
Derek panted, his heavy cock twitching between his legs as his wolf begged to be released. “D-Derek, please, want you, please,” He begged, tears in his big brown eyes as he looked up at Derek.
Derek had to take a deep breath, his wolf at the surface.
“Mm, please,” Stiles begged as he opened his legs wider for the Alpha. Derek let out a rumbling growl. Stiles looked up at him, nervously biting his lip. Derek grabbed one of the pillows and slid it under his lower back. He reached for the lube once more, coating a good amount on his cock.
Derek then gently cupped Stiles’ face, “I love you,” he said softly, a tender look in his eyes that made the human relax instantly. Stiles grabbed the back of the wolf’s neck, pulling him into a desperate kiss that was filled with lust, love and promise.
“I love you too, Derek.”
Derek kissed him again, emotions flying as he pressed the tip of his cock to his entrance.
He pushed in.
Stiles tried not to tense up as his dick slid deeper and deeper inside.
“I’ve got you, baby,” Derek soothed as he kissed Stiles’ temples, making sure to go as slow as possible despite how much he desperately wanted to plunge into the tight heat. His inner animal howling.
Stiles let out a gorgeous moan that didn’t help Derek keep the wolf at bay.
Stiles noticed the way Derek tensed up, closing eyes and breathing deeply.
“Der, are you okay?”
“I-I don’t, I don’t want to hurt you,” Derek kept his eyes shut tight, fists in the sheets beside Stiles’ hips.
Stiles cupped his face, “Look at me. Please.”
Derek opened his eyes. Red iris’, blown pupils. Predatory.
“Let go.” He said.
“Stiles-”
“Let go, Derek.” Stiles nuzzled his nose against the wolf’s, “I want to see you. All of you, Derek. Let go.”
Derek’s heart thundered from inside his chest, his hands forming claws, ripping the sheets below. His ears become pointed, sideburns growing and forehead enlarging. Then his fangs grew and a loud growl echoed in the room.
They looked at each other.
Stiles traced the predator's features with the very tips of his fingers. It was such a gentle touch that it felt like feathers against Derek’s skin.
“Perfect.” Stiles whispered.
In a swell of affection, Derek leaned down and nuzzled Stiles’ neck as he pressed his hips forward, paying keen attention to every little sound that left Stiles’ lips.
“Ah!” He gasped, his eyes shut and his brows slightly pinched together. “D-don’t stop, please.”
Derek purred, licking the sweat from Stiles’ throat. He was fully inside Stiles’ tight heat now and he wanted to howl with satisfaction.
Stiles threw his head back, his marked up neck exposed to Derek, and the sight made Derek lose it a little more.
Mine, mine, my beautiful mate, my perfect mate.
“I-it’s so, I feel so full,” He whined, his words and tone making Derek’s cock throb. “Move. M-Move, Der, p-please.”
“I-I’m losing control.” Derek admitted, fangs glistening with salvia.
Stiles grinned, rocking his hips up and breath shaking, “Then lose control, Der. Show me how a true Alpha fucks his mate.”
Derek all but roared, snapping his hips forward, making Stiles’ entire body jolt up on the mattress.
Stiles moaned loudly, grabbing onto Derek’s shoulders.
“Der! D-Derek, faster!” He whined.
“Mine.” The Alpha’s voice deep and gravelly, his hips snapping again and again, feeling Stiles’ hole clenching around him. “My mate. Mine. Fuck.”
“Y-Yours.” He whimpered in response, “All- All yours.”
Derek growled as he adjusted his stance and began to pound into Stiles’ ass harder, making the man beneath him cry out in pleasure. The sound of their skin slapping together made the Alpha’s cock twitch, and Stiles’ cries were fucking beautiful.
“Yes! Oh fuck, yes yes!” Stiles babbled, his head thrashing about wildly as his body bounced with every thrust. “S-So big,. S-So big inside me, Der, ah!”
He dug his fingers into Derek’s flesh and used his legs to pull the Alpha in more, deepening the movements.
The wolf snarled, gripping hold of his mate tightly, his claws breaking skin. “Stiles. My mate. My pup’s mama. My everything.”
“Yes, Derek.” Stiles whispered, yet he knew Derek could hear him, “I’m yours. And you’re mine. My mate. My Alpha. My pup’s daddy.”
That made the Alpha roar once more, speeding up. Sweat dripping, face in Stiles’ neck to bite at the pulse as careful as he could as his fangs refused to shrink.
Their stomachs tightening with each frantic movement, desperation building as the tension inside them got tighter and tighter. Stiles felt his eyes roll into the back of his head as his muscles tightened, and he began to whine and whimper. No real words being able to form in his brain or throat.
Derek then felt it.
The swelling at the base of his cock, growing rapidly as his climax reached.
Stiles felt it too, legs shaking uncontrollably, “W-What- Derek-”
“Shit, baby. I’m gonna fucking knot.” Derek warned, his breathing ragged.
The words took a second to click but once they did, it couldn’t stop the overwhelming explosion of absolute pleasure that wrecked him.
“Yes! Yes! Fuck! yesyesyes!” Stiles screamed. His mouth hung wide open as his back arched dramatically away from the bed as his own cum shot across his stomach and chest.
“So fucking sexy, fuck, I’m knotting you, baby. I’m locking us together.” Derek slurred, hunching over, as he thrust once, twice, three times until he came himself. His knot popping, trapping his cum inside Stiles.
The knot stretched him to the max and it made Stiles shiver all over, feeling his Alpha fill him up.
Stiles grabbed Derek’s face forcefully, bringing in down and into a filthy, frantic kiss. He didn’t care that his fangs were hitting his lips, instead he just licked at them.
They panted in each other's mouths, holding the other close as their heartbeats settled back into their chest.
“Fuck, Stiles,” Derek breathed, fangs sinking back into his gums and claws retreating, “That was--”
“Yeah,” He giggled, smiling brightly as he traced the features of Derek’s face in the high of the afterglow.
Derek smiled and kissed his mate again, sweet and slow. Stiles hummed happily as their lips moved languidly together, unhurried and at peace.
When they pulled away, blissed out on natural endorphins.
Stiles hummed, “I’m not going to be able to walk tomorrow.”
“That won’t do,” Derek’s voice rough and happy, “We have a pup to look after tomorrow. Need you on your feet.”
“Well, you should’ve thought about that before you fucked me into oblivion.”
Derek raised an eyebrow, “You want me to apologise?”
“No.”
“Good because I’m not sorry.”
Stiles hit Derek’s chest playfully, a giggle on his lips, “Shut up, sourwolf.”
He chuckled, pressing a kiss to Stiles’ flushed cheek, looking into his mate’s big doe eyes, sighing in utter satisfaction.
“What?” Stiles asked.
“You’re so beautiful.”
“You’re not bad to look at either,” He teased, cupping his Alpha’s face and kissing him soundly on the lips. “I love you, Derek.”
“I love you too.” Derek answered, cupping the back of his head as he kissed him back just as passionately.
They slept on their sides, Derek’s knot still inflamed, locking them together.
They didn’t mind it though.
They fell asleep almost instantly, loving the way each other felt in the others arms.
They woke up to the sound of crying.
It came from Isaac’s room and the pair bolted up and out of bed. Stiles’ body still aches but the adrenaline came kicking in, making him invincible. Stiles pulled on his boxers and Derek’s t-shirt - which draped over him like a dress, exposing his collarbone - while Derek made due with just his boxer shorts.
They ran out the room, opened the door to Isaac’s room and froze.
Their mouths hung open as they saw a butt naked toddler Isaac sitting up in his crib with his wide blue eyes filled with tears. His face was red, his nose snotty but he was the most adorable thing Stiles had ever seen. His mouth only had his two front teeth and his little fingers were clutching his blankie like a vice. His blond curls are a mess due to bedhead and his chubby tummy was exposed to the air.
Stiles went to him and Isaac sniffed the area before lifting up his hands, wanting Stiles to pick him up. Stiles did, holding him close, letting the boy nuzzle his - still bruised - neck. The cries calmed into gentle sniffing and Stiles swung side to side to lull the toddler into a peaceful state.
Stiles looked up at Derek, seeing that he had not moved.
He had a face of complete and utter awe, staring at the pup with such wonder and love that made Stiles’ heart leap.
Stiles stepped towards the Alpha, kissing Isaac’s hair before speaking to the pup, though his eyes didn’t really leave Derek's.
“Look who’s here, Isaac. Look. It’s daddy. Wanna give daddy a hug? You give amazing hugs, I think daddy would love a hug.”
Isaac looked at the Alpha and made an excited gurgle, wiggling his body, wanting to get down. Stiles smiled, putting Isaac onto the floor.
On unstable legs, Isaac wobbled over to the Alpha, still naked, but way too excited to care. He collided with Derek’s legs, giggling like crazy before reaching up to make grabby hands up towards the older wolf.
Derek snapped out of his trance, bending to gather the toddler in his arms. The wolves nuzzled one another, collecting each other’s scents and it made the Alpha’s chest rumble in a purr.
Stiles went to them and joined their hug, both him and pup gathered in the safety of the Alpha’s hold.
Isaac reached up, patting Derek’s stubbled cheek.
“'addy.” He said, a drool trail falling from his lips. He then looked at Stiles, doing the same and patting his cheek, “Mama.”
The new parents had tears in their eyes, hearing the words make this whole thing a lot more real. It felt so right. So normal.
“That’s right, puppy.” Stiles said to Isaac then turned to Derek, “How about we get our pup dressed and get him some breakfast?”
“Sounds good.” Derek couldn’t keep the blinding smile off of his face. He bent down to give Stiles a sweet short kiss. “I love you.”
Stiles smiled back, “I love you too.”
“‘Ove!” Isaac squealed, making the adults laugh.
“And we love you too, Isaac.” Derek informed the pup, chuckling.
Stiles agreed, “No matter what.”
End.