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Wet sounds echoed across Stiles’ bedroom while Stiles thought, how much longer will it go on for? Stiles tried to hide his moan in his pillows while Derek thrust hard and rough into Stiles’ pussy. How much longer will this messed-up relationship of ours go on for?
With his hands forming bruises on Stiles’ hips, Derek growled at him, “Come on, move your hips more.”
Against what his moral thoughts told him, Stiles raised his hips higher so Derek could thrust deeper. He moved his arms so he wouldn’t choke on his pillows as the alpha adjusted his hips when he felt that Stiles hadn’t raised himself enough. In this position, he could see all of my embarrassing parts, Stiles thought as Derek continued thrusting deep inside him. The short skirt Derek liked him to wear rode higher, and his breasts rubbed against the blanket as they hung from his unbuttoned shirt.
“Excellent,” Derek growled as he thrust faster into him. “I can reach deep inside you like this.”
No… If you go that deep… Stiles thought as he bit into his pillows to hide his moans, the blush on his cheeks spreading lower.
Derek heard Stiles’ moans as the omega began to feel he was going to come any second, which caused his walls to tighten around Derek’s cock. “That’s good, Stiles. Grip me tighter!” Derek thrust harder into him as he growled, “I’m going to come!”
Please, end this already! Stiles thought as Derek grabbed his ass cheeks and thrust harder, wanting to watch his cock slide in and out of Stiles’ soaking pussy. “I-I’m about to…” Stiles moaned as he came, while Derek came into the condom he was wearing inside him.
After Derek came, he removed the condom while watching Stiles’ juices run out of him and onto the bed from the position he had left him in. “Look at all this dirty juice you let out. It’s going to stain the bed.”
Still high from his orgasm, Stiles could barely see Derek putting on his underwear and jeans. “I’m sorry. I’ll be sure to wash it later.” After he stopped shivering, Stiles grabbed a rag to clean himself while Derek threw the used condoms into the trash.
The omega couldn’t bring himself to look at Derek while the alpha got ready to leave. “Well then, I guess I’ll head to bed. You should do the same.”
“W-wait…” Stiles started, sitting on the bed with his unbuttoned shirt exposing his chest as Derek moved toward the door. “The parent-child meeting at school is next week, so…” Stiles began, and Derek paused, motioning for him to continue.
Derek smirked. “Oh, right. Of course, I’ll go.”
Before leaving, Derek licked one nipple with a broad sweep of his tongue, then licked both again before stepping out. That was when Stiles understood that the licking was a form of claiming.
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The next week, Derek and Stiles sat across from Mr. Finstock, Stiles’ teacher, during the parent-child meeting at school.
“So, how are my son’s grades?” Derek asked.
“Great! Stiles is really giving it his all. His ranking on the latest test was very good,” Mr. Finstock replied with a proud smile.
Acting surprised, Derek said, “Oh, really? That’s a relief. I’m working most of the time, so I don’t really have the opportunity to check on his studies.” As he spoke, he placed his hand on Stiles’ thigh under the table, over the short skirt he insisted he wear. “Ever since my wife and I separated, it’s just been me and Stiles. I leave all the duties of the house to him. He’s my pride and joy.”
“Is that right? You’re a good kid, Stiles,” Mr. Finstock said, unaware that Derek’s hand was moving higher under the table.
As Derek continued touching him, Mr. Finstock looked over Stiles’ university choices. “So your first choice is Columbia University?”
Derek paused slightly. “New York?” he asked, surprised.
Stiles tightened his mouth.
“Oh, he didn’t tell you?” Mr. Finstock asked.
Derek’s grip on Stiles’ thigh tightened. “N-No…”
“Stiles, you haven’t discussed your plans with him yet?” Mr. Finstock asked.
With his face lowered, Stiles whispered, “I’m sorry.”
Mr. Finstock, unaware of the tension, continued, “I think one more year of good performance should seal the deal, so be sure to talk this over with your father, okay?”
“Yes,” Stiles whispered.
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After the meeting, Derek cornered Stiles in the hallway. “Why aren’t you choosing a local school, Stiles?! How could you go behind my back and apply to a school in New York? What the hell are you thinking?!”
Stiles shivered. “I’m sorry… I tried to talk to you about it, but…”
Derek’s eyes flashed red. “Are you going to betray me too?! Just like your mother did?!”
“No… I’m not…” Stiles stuttered.
“I’m begging you, Stiles, don’t leave me. I need you!”
The reason I couldn’t tell him was that I knew he’d be against it, Stiles thought. Dad really can’t let go of me.
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“Ever since my mother ran off with another man, my once gentle father drowned himself in alcohol. And then, one night…”
One night, while Stiles sat at his desk working on his laptop, Derek burst into his room and threw him onto the bed.
“Dad, no! Stop! Please, let me go!” Stiles yelled as his father tore off his pajamas, crying over his wife leaving.
“Stiles, tell me, where did I go wrong?” Derek cried.
“D-Dad?”
Sticking a finger of Stiles into his mouth and around the finger, he told Stiles, “No matter how much I think about it, I just don’t know! What did I do wrong, Stiles?” Derek trails a finger over Stiles' folds where he rubs his clit with an experimental stroke of his thumb, and then he slips his fingers inside where he begins to pump frantically and too roughly. With two of his fingers plunging deep and with his other hand kneading his breast, Stiles came to his climax with a soundless shriek.
“After that, I lost any courage I had to tell him to stop.” After having the young omega's legs wrapped around his waist, Derek moved them until he could bury his nose and tongue into the pure pussy of his underage omega son.
“Stiles, your pussy is so wet, and it tastes so good!” Derek moaned against Stiles’ wet pussy while Stiles’ juices ran down his face and down into the bed.
While Derek licked Stiles, Stiles thought, “No, don’t lick that!” Derek took out his alpha cock from his jeans that were already so hard for the young pussy that was in front of him.
“Stiles, your Dad’s been so lonely and he’s almost at his breaking point.” Derek told Stiles as he covered his cock with Stiles’ juices while rubbing his cock over that soaking virgin pussy.
“I thought that if I denied him, he would break tonight. That’s why I…” At the thought, Derek buried his alpha cock into Stiles without allowing the virgin omega to adjust to his cock even while Stiles cried for Derek to wait.
As Derek felt his cocky cock surrounded by the virgin walls of his son, he groaned, “Stiles, your insides are so warm – it feels so good!”
Virgin blood ran out of Stiles and stained the omega’s bed covers, “It hurts! It really hurts!” Stiles yelled at his father, “I’m being raped! I’m being raped by my dad! He’s stirring up my insides! It…isn’t right!”
Derek, not caring about how Stiles was suffering, thrust harder into the omega, “Stiles. Stiles! Stiles! Stiles! Stiles!”
“That night, Dad violated my body multiple times, taking my first time in the process.”
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Against the school wall, Derek pulled Stiles’ bra up, which caused the omega’s breasts to push forward where the alpha’s hands were already waiting for those big breasts; as Derek groped them, “I know more about you than anyone, Stiles.”
“Every night after that, my Dad had sex with me.” Derek grabs each breast in his huge hands; with his thumbs, he swirls Stiles’ sensitive nipples.
Stiles’ nipples easily harden with Derek’s thumb as the omega in Stiles already recognized Derek as their alpha, “Amazing, they’re already this hard.” Derek said with amazement as Stiles’ nipples harden under his hands, “It feels good, doesn’t it?”
Derek set out to lick his nipples in a wild, desperate frenzy and began to devour his nipples. Stiles moaned loudly in the hallways, where Derek began to suck on Stiles’ left nipple as his hand fondles the breast of the omega while his tongue swirls the hard nipple in his mouth, “My body has already started to react the way he wants it to.”
With the hand that Derek was fondling that breast that he doesn’t have in his mouth, he moved it south to raise the tiny skirt and slide his hand into Stiles’ panties where he plunges two fingers into the already soaking pussy, “Look, you’re already getting soaked. I’m the only one who can make you feel good."
“No, Dad already knows all of my soft spots.” Stiles thought shyly as he was frozen against the wall while Derek kneeled in front of Stiles so he could see the pussy where he was thrusting his fingers inside. “I guess I really was wrong…”
Derek looked at Stiles and smirked, “Dad’s going to lick you clean, okay?” Derek began licking Stiles while the underage omega held onto his skirt, and his father forced himself without caring if someone saw them.
“What should I do? I’m doing something I shouldn’t be doing in school! Oh no, I’m going to cum!” It took Stiles a second to cum from having his father’s tongue in him.
Surprised that the sensitive omega had cummed so fast from just his tongue, Derek smirked at Stiles from a kneeling position, “You came already? You’re so sensitive, Stiles.”
Looking anywhere but Derek’s eyes, a blushing Stiles told Derek, “I-I’m sorry.”
Derek unzipped his dress pants and pulled out his hard alpha cock, “Now, stick your ass this way.”
Stiles followed Derek’s command and turned around until his omega’s breasts were squeezed against the cold wall of his school, “U-Um…” Derek pulled apart Stiles’ asscheeks so he could see both holes of the omega while he held his cock in his other hand, “Can we do this at home?” Stiles asked his dad shyly because he was scared that anyone could see them in this embarrassing position.
Derek rubbed his cock on Stiles’ holes to lubricate his cock, “Don’t worry, it'll be over soon.”
“B-But, if someone comes…” Stiles stuttered as Derek had him bend over while the alpha was dry humping him.
Not changing his mind about fucking his omega in a private location, Derek kept dry humping Stiles between his asscheeks, “You’re graduating next year anyway. That'll make for a great school memory, don’t you think?”
“There was nothing I could do. Since it went this far, I…” Stiles moaned loudly as Derek thrust all the way into Stiles’ wet pussy.
Derek groaned as his eyes flashed red and his claws came out at the feel of Stiles’ slick walls, “It’s been so long since I’ve done it raw. This is definitely the best!”
“Wait, Dad, you’re not wearing a condom?” Stiles asked Derek between moans as his father’s thrust pushed him against the wall.
Instead of stopping his thrust, Derek thrust harder into Stiles, “Yeah, I forgot to bring one.”
“No, you’re kidding!” Stiles said, but he knew that Derek was telling the truth, as this felt different compared to all the times they had had sex.
Derek smirked at Stiles when his son turned his head to look at him while he kept thrusting, “Don’t you think it’d be weird for a parent to bring one of those to a school?”
Stiles felt the big alpha cock in his pussy, “Dad’s dick is so big and hot. It’s rubbing me so hard!”
“Does it feel good to be fucked raw, Stiles?” Derek asked Stiles in his alpha tone.
That tone caused the omega to forget that this was bad and that the alpha fucking into him was his father, “Yeah…it’s so slippery and warm.”
Derek thrust harder into the omega while his hands were leaving bruises on his hips, “Is that so? Then I guess, every now and then, I won’t put one on.”
“Just what am I doing?” Stiles thought to himself while the omega in him screamed to let go of everything and just allow the strong alpha to breed him, “I know that I don’t want to do this, but I can’t help but do what Dad tells me to do. My body likes doing this!”
With his hands grasping Stiles’ hips and his cock thrust deep into Stiles, Derek began talking, “Stiles, let’s talk about your plans for the future again.”
“Okay…” Stiles moaned.
“Don’t worry about school fees or anything. I’ll give you everything I have.” Derek changed their position, so Stiles was leaning on the wall while he had his long legs wrapped around his father's waist while that hard cock kept thrusting into him.
“Dad…” Stiles moaned as his father kept thrusting deep and hard into him.
“However, you can’t go anywhere far away from me. Okay?” Derek slowed his thrusts so the young omega could understand how serious this conversation was.
Stiles, not liking the idea of attending a local university instead of New York, began to say, “But…”
“Okay?!” Derek growled at Stiles and pulled out his cock from Stiles.
The omega in Stiles begged for him to say whatever it took for his alpha to push his cock into their soaking pussy, “Yes…”
At hearing Stiles agreeing, Derek pushed all of his cock into Stiles in a thrust, “Okay. Good boy!”
“No, Dad, don’t be so rough or else I’ll-” Stiles said as Derek thrust harder than his dad has ever thrust into his son.
With a hand, Derek moved Stiles' face so he could see the pale throat of his omega son, “Even after you graduate, you’ll always be with me! Let’s do lots of fun things from now on, okay?” Derek’s fangs came out, and he bit Stiles’ neck to blind them as a mated couple; now even the law couldn’t say anything about an underage omega being mated to an older alpha or if they were blood-related father and son. Derek’s bite was not delicate, but as his teeth sank so deep, Stiles’ spine arched in his pain, and his hips began to move faster because the pleasure was too immediate.
“I really can’t resist him. At this rate, I’ll just become his possession.” These were the last thoughts Stiles had before he felt the bond between him and the older alpha; his body began to warm up as his heat began after bonding.
After cleaning the mating bite with his tongue, Derek began to lick and suck bruises on Stiles’ neck, “Come on, Stiles, tighten that your pussy and squeeze Daddy tighter.”
“Yes…” Stiles followed the command of his alpha and tightened his pussy around his alpha’s cock.
“Good, just like that! Very good!” Derek told Stiles as he began to feel his knot forming.
Somewhere inside Stiles' mind, he thought, “I know I shouldn’t be doing this, but I’m even more turned on than usual! What should I do? I’m getting wetter and wetter!” Stiles felt that cock of alpha getting deeper in him than normal. “No, it’s going so deep inside me! It’s hitting my womb!” Stiles was able to yell at Derek.
“How about it? This spot feels good, right? Dad knows!” Derek said as he began to push his knot inside Stiles.
Stiles tried to hold onto his alpha’s strong shoulders as he felt his alpha’s cock growing bigger, “Dad, please! Don’t do any more of that! I’m going to lose it!”
Derek pulled his cock and knot out of Stiles so he could put him on four on the ground, “I’m going to cum inside you soon. I’m going to pour all of my cum inside you, okay?” Derek said as he began to thrust his knot deeper into Stiles.
“But if you do that –” Stiles began to argue because he was too young to breed his alpha pups even if the omega in him opened his legs wider.
“It’s fine. You won’t get pregnant after just one time.” Derek cut off Stiles, “So lower your body more.”
Stiles knew almost nothing about safe sex, but he wasn’t too sure that he wouldn’t get pregnant after just one time. “He’s going to cum. He’s going to cum inside of me! I’m at my limit!”
In the next deep thrust, Derek pushed his knot inside Stiles’ womb and both cummed at the same time, “I came a lot today, just like usual.”
“Amazing. His hot stuff is flooding into me. We can’t be a normal family anymore.” Stiles thought as he fell asleep while resting his head on his alpha’s shoulder while his knot went down, and Derek wrapped his arms around his young mate, protecting him.
It was late, which is why no one found them in the hallway, and after Derek’s knack went down, he woke up Stiles from his nap. “Please clean Dad’s cock, Stiles.”
“Yes…” Stiles said as he kneeled on the cold floor with his pussy dripping its juices.
Derek wrapped his hand on Stiles’ hair and thrust his cock into his omega’s throat, “Just like that. You’re really good at sucking.”
“What a dirty smell. This was inside of me?” Stiles thought as he sucked his alpha clean from their combined fluids, “His dick is getting even bigger. Is he getting aroused? What should I do? I’m starting to feel very weird.”
Stiles was cut off from his innocent train of thought by Derek, “You can stop. I’m going to cum again at this rate.” Derek removed his cock from Stiles’ mouth with a wet pop, “Let’s pick this up at home, okay, Stiles?”
“Yes, dad.” Stiles agreed, and with his alpha's help, he dressed up, and both left the school.
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Six months after their mating, Stiles waddled to the couch where Derek sat. His feet were swollen. Derek had gotten him pregnant the day of the meeting, and once he found out, they had spent their days together.
Stiles cupped the noticeable swell of his belly as he sat beside him. Derek leaned down, pressing soft kisses to his stomach before resting his ear against it, listening to their baby’s heartbeat.
Moments like these made Stiles wonder what their child would call Derek—dad, as he did, or something else. But to Derek, it didn’t matter. Boundaries didn’t exist for him.
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Two months after giving birth, Stiles found out he was pregnant again.
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Two Years Later
Derek opened the front door of the house he had paid off after Jennifer left, and was greeted by Stiles scolding their son for stealing a cookie.
He looked adorable, Derek thought, watching his omega. One hand rested on his hip while the other held their newborn daughter, who looked more like Stiles. Derek chuckled as he took off his shoes. He had definitely kept his promise—Stiles was already showing another small baby bump beneath his sweater.
Stiles looked up as Derek entered, shifting their daughter and rising onto his toes to give him a soft kiss. Their son made a retching noise, and Derek ruffled his hair in response.
“Welcome home, Dad,” Stiles whispered, leaning against him.
Derek smiled softly. He had gotten used to this.