Driving down a dimly lit road, Derek male wolf in his late thirties, is making his way home from work. The road was long but thankfully pretty straight save for the slight curve now and again. After about 15 minutes of driving a large house comes into view. As he comes up to the gate leading to the driveway, the wolf reaches up to a button on his sun visor and presses it, activating the gate.
   After parking the car and gathering his things the wolf makes his way inside. The house is a mix of modern design and log cabin, he wanted it that way since he was living lakeside. Making his way upstairs to his room he trips on a toy truck on his way up, “Jason.” He grumbles as he picks the toy and brings it up stairs with him. 
   Once inside his room, he quickly got out of the business suit he was in and changed into something more comfortable. His wife was away on a business trip overseas. So he didn’t have to worry about tip toeing in like he always does. 
   As he turns the tv on and the lights off a soft voice comes from the now dark doorway. “Daddy, can I please sleep with you tonight?” a young male voice calls out. 
   “Jason, you’re a big boy now, remember? Plus I should be punishing you, you left a toy truck on the stairs and I almost fell.” Jason sniffled a little as Derek sits at the foot of the bed. 
   Jason walks into the room he’s holding a stuffed and wearing a footed sleeper with cartoon characters on it. The boy is a wolf just like him and looks to be around the age of 7. “But daddy I had a really bad dream.” He says, turning on the lights to the room and continuing to walk up to his dad.
   He looked at his son’s little face and smiled. “Alright, how can I say no to a face like that.” He held his arms out for his son to hug him and brought him in for a hug.Jason smiled and ran up to hug his father, his tail wagged wildey. As he hugged his father he started to feel something push against him. Jason looked up at his father as Derek looked down at him. 
   “Did you really think you were just going to give me some puppy dog eyes and not have to pay the tax to get into my bed?” He asked while gently pushing his son back from the hug. Derek took the dragon from Jason and placed it on the side of the bed and started to unzip Jason’s sleeper. Derek always liked to savor this moment, it always turned him on.”
   As the zipper moved lower, reaching just above Jason’s belly button, Derek heard footsteps coming from the hallway. He looked to the door to see a young gray tabby kitten walk into the room. She walked into the room yawning and stretching. As she stretches the bottom a diaper could be seen under her night shirt as she walks in. “Hey dad, I woke up and saw the time and figured you’d be home.” She flopped onto the bed, her shirt now raised and her diaper fully exposed. “I was wondering if you could change me.” She said bringing her knees to her chest and tucking her arms under knees. The seat and crotch of her soiled diaper now fully exposed. 
   “Hello Kayla, I’ll change you after your brother pays the bed tax.” Derek says, pulling the rest of Jason's zipper to his onesie down, revealing his diaper with the same cartoon characters as the sleeper. 
   
   Jason was Derek’s son, Kayla was his step daughter, recently his full daughter since he officially adopted her a few months ago. Derek had moved to Lake City only a few years ago. He knew about the county’s reputation and its laws but could not pass up the job he was being offered. He met his wife Stacy and her daughter Kayla Shortly after moving to town. They married a few years later. On their honeymoon night, Derek had sex with his wife and step daughter in the same bed. Stacey said it would mean a better bond with him and his daughter. 


Coming back from the memory, Derek stood up and took off his boxers letting his erection spring free. Kayla wiggled her butt at seeing her fathers erection. Jason stepped out of his sleeper and crawled onto the bed and laid next to his sister with his legs spread open. Derek reached down and checked both of their diapers. Kayla was only wet, and recently her diaper was still warm. Jason was also wet, no surprise there, he did just have a nightmare, no surprise he might have peed himself. 
   As he stood there thinking about which of his children he wanted to fuck first, Derek thought back to a time when Jason had just turned 6 and was introduced to sex. He walked in on Jason eating Kayla out. He remembers watching them and rubbing one out as Jason brought his sister to a climax. As he thought of an idea he sat Kayla up and removed her night shirt. Her budding breast now bare, he laid her back on the bed and gave her diapered crotch a squeeze, getting a moan out of her. 
   “Alright Jason lay on top of you sister so your diapers are on top of eachother.” He said, giving his cock a few strokes to keep his erection up. Jason nodded and rolled over on top of his sister. He was about to sit up when Derek stopped him. “No, it’s okay, just lay like that.” Derek lined up his cock to his kids' connected diapers right where they met. As he was about to push in he looked at them again. “Maybe kiss a little.” he suggested. The two shrugged and started to kiss.
   As Jason and Kayla kissed, Derek pushed his cock in between his children's diaper, the warm plastic easily slicked up with Derek’s precum. Jason pressed a little harder down onto his sister's hips to give his father some resistance to his thrusts. 
   The sound of the crinkling plastic along with the sounds of his children making out, Derek knew he wasn’t going to last long. He pulled his cock out from the makeshift diaper fleshlight and told Jason to get further back on the bed. Kayla moved out of the way and Jason did as he was told. Derek bent him over and pulled the back of the diaper down exposing his ass. Kayla passed Derek a bottle of lube. Derek poured a little onto his son's ass hole and used a finger to push the lube in. Jason moaned when his fathers finger entered him. Since he was 6 Jason was no stranger to his father’s finger or penis. 
   After the first finger successfully lubed up Jason’s ass, Derek added a second finger. Jason let out what could only be described as a cute squeak more than a moan. Checking that his fingers could move freely inside of Jason Derekpulled them out leaving his sons hole gaping a little. He lined himself up behind Jason and pressed the tip of his cock onto Jason’s hole. “You ready baby boy? Derek asked, patting his son’s butt cheeks. Jason looked back and nodded. 
   Before Derek could push forward, Kayla moved in front of her brother and laid down so her crotch was in his face. She pulled a few tapes on her diaper enough for her to pull it to the side and reveal her pussy to Jason, “you know what to do little brother.” She said stroking his head.
   Derek looked to the two of them, “Okay is everyone ready now?” He asked, pressing the head of his cock into Jason. The two nod as Jason leans his head down and starts to lick at his older sister's pussy. Derek pressed his cock into Jason. The head and shaft had no issue entering the little pup, but when it came to the knot it stopped and bumped against Jason's ass. Derek had not tied with his son yet, he wanted to wait till he was a little older and his ass was more used to it. Kayla on the other hand, he had tied with several times. The most recent he could think of was 2 nights ago. 
   Still not wanting to tie with his son this early, Derek pulled his cock back and thrust forward again, this time letting the knot hit a little harder. Each thrust into his son, the knot hit a little harder each time. The sounds he was getting from his son each time the knot stretched his hole a little wider finally drove him over the edge. With one last powerful thrust and groan from Derek to match, he started to cum in Jason’s ass. Each rope filled the little pup with his father’s cum. Derek did his best to keep the knot placed firmly against Jason’s hole as to not let the cum leak out. Jason momentarily stopped eating his sister out as an orgasm rocked through his body. He could feel his little cock twitching against his wet padding in a dry orgasm. 
   When Derek was finished cuming he gripped the back of his son's diaper and got ready to pull it up again. With quick and practiced precision. Derek pulled his cock out of his son’s ass and pulled the back of the diaper up just in time to catch some cum that was leaking out of his ass. He taped the diaper up again and laid his son down on the bed and gave him a kiss. “That was wonderful buddy.” you can sleep in bed with me now.” He gave him another kiss. “I’ll change your diaper when all of daddy’s cum is out okay?” Jason nodded and Derek handed him back the stuffed dragon toy for him to cuddle with. 
    Derek looked over to Kayla and moved to her side of the bed. “Well since your diaper is already half way off, let’s get you changed.” Derek said getting off the bed and walking over to his closet where he and his wife kept some spare diapers. Derek returned with a deep purple diaper as well as a bright pink diaper for his son. 
   Walking back to the bed and placing the diapers down Derek, pulled the rest of the tapes off of Kayla and removed the diaper, leaving her completely naked. He lifted her legs into the air and placed the new diaper underneath her. He reached down to her young pussy and slipped his fingers inside, eliciting a moan from Kayla. She was completely wet and not just from a wet diaper. He kept his fingers in her and leaned in to give her a kiss. “Looks like your little brother left the job half done.” He kissed her neck. “Do you want daddy to take care of the rest?” He already knew the answer; he just wanted to hear her say it. 
   With each gentle thrust of his fingers into Kayla, She began to writhe with pleasure. “Daddy, please, I can’t take it any more, please fuck me.” Derek knew when she was on the verge of her orgasm, just like her mother, she starts to breath heavily and then her pussy starts to clamp down. Derek could feel his daughter's pussy starting to contract a little. He removed his fingers from her pussy and used her fluids to coat his dick. He looked down at it and saw that it wasn’t enough He reached over to Jason and stuck his finger into the leg hole of the diaper and scooped out some of the cum in his son’s diaper. He smeared it on the head of his cock and spread her legs while lining the tip up with Kayla’s pussy. 
   With one thrust forward he entered his little girl and did not hesitate to start fucking her. He knew that she could take it a little rougher than her brother mostly because she can take his knott and has taken it plenty of times before. Each time the knot hits her lips and stretches them a little, Kayla throws her head back. Derek didn’t want to tie her either. He didn’t want her to be without a diaper for so long, mostly because his wife gets mad when the kids have an accident on the bed. The other is because he wanted to cuddle with both his kids before going to sleep. 
   Focusing on the task at hand, Derke looked down to see that Kayla’s tongue was hanging out of her mouth now.. She was silent now, no more moaning was coming from her. She was in pure ecstasy. 
   Derek could feel his balls start to tighten a little as his thrusts became faster. As he was feeling this, he could feel Kaya’s pussy really start to clamp down on his dick. With one last thrust going as far as he could without tying with her, Kayla reached her orgasm and cried out as her pussy started to milk her father’s cock for all it had. The massaging and contracting confines of the young pussy pushed Derek over the edge. He started to pump a few ropes of his cum into Kayla. Not as much as his son but enough to still cause a mess. 
   After both came down from their orgasmic highs, Derek pulled his softening dick from Kayla and wiped it off on the diaper beneath her. As he wiped his cock off some of his cum started to leak out of Kayla. “Thank god I put a diaper down for you, the one thing your mom hates more than you kids having an accident is love stains on the sheets. He said wiping her vagina down and pulling the front of the diaper up. Luckily for him it was just in time as she started to pee a little. “It’s alright kiddo, it’s just a little, we can change you in the morning.” He said tapping her diaper up 
   He moved over to Jason who was now asleep. He quickly changed his son’s diaper and laid him back at the head of the bed. After cleaning his crotch off, Derek laid down in bed and pulled his son into his left side and opened his arm for Kayla to join him on the right. She snuggled in with her daddy and the trio quickly fell asleep for the night. 
   The next morning Derek woke up to an odd sensation near his crotch, he lifted the blankets to see what was going on and to his… well not surprise, but something he certainly wasn’t expecting; Jason was under the covers humping his wet pink diaper into his fathers leg and sucking his morning wood. Derek chuckled a little as he let go of the blanket and laid back in bed. “Looks like it's chocolate chip pancakes for breakfast this morning.”