The living room lights were off and the glow of a television filled the room. A Sergal sat on the couch while a little human sat on his leg. The Sergal was covered head to toe in fluffy fur, a dark blue on his back side and white on the front, covered by a pair of shorts and shirt. The little boy accompanying him wore a pair of denim overalls with a red and white striped shirt beneath in, a noticable bulge from a diaper pushed out from within. The human suckled his pacifier while the Sergal was fixated on the television, with one hand wrapped around the child and another holding the TV remote. His ears twitched when he heard a deep snore off to the side. The Sergal looked over at the source of the noise. A red dragon lie curled on a large cushion on the floor where a recliner might be, in a deep sleep. A book sat open in front of him on the floor and a pair of glasses rested on his snout. The Sergal smiled and admired his sleeping husband, a tad larger than the average bipedal person with red scales and black horns, and wings that would knock everything in the living room over had he not been so careful about unfolding them indoors.

The two of them were a happy couple. They really wanted a child and so they adopted their little human with the intent of giving him a loving family and a good home. However, between working, maintaining their house and performing other chores as well as caring for their little boy, the pair's sex life had nearly vanished. Though they didn't make love nearly as often, the need for it was still strongly there. Being mounted by a dragon was a surge of adrenaline the Sergal just wasn't ready to let go of. While the void left behind by dragon dick was a large one to fill, the Sergal had managed to fill it with something very taboo. What he couldn't have in size, he'd more than make up for in naughtiness. The furry father looked down at his son, giving him a wink.

"I think someone could use a quick change." He lied, in case ears were prying.

The Sergal sat the human aside on the sofa before standing up and walking towards his snoring husband. Testing to see just how deep his sleep was, the Sergal gave the Dragon a few gentle pats on the side before kissing him on the end of his muzzle. The dragon shifted lightly, groaning a bit before a warm smile formed on his face. He continued snoring as the Sergal backed away, turning back to the innocent child. 

"Alright, kiddo... Up you go." He said to the boy, picking him up and perching him on one arm.

Making his way to the stairs, the pair began to ascend them as the creeked beneath his feet: a sound that the Sergal was greatful for incase his husband might ever wake up and come upstairs. Reaching the top, he gently pushed their bedroom door open and walked past the large bed in which the trio retired to at the end of most of their nights. Reaching the changing table at the other side of the room, the Sergal gently layed his boy down on its padded surface. The table was longways aginst the wall, so now the Sergal stood at the child's side. With a warm smile, the father unclipped the shoulder straps of his son's overalls, slipping them down to his feet and removing them completely. Now his boy's diaper was completely exposed to him, and notably dry with no odor coming from it.

The Sergal looked down at his son's bare legs, protruding from the diaper he wore. He gently ran a finger down them, from his foot and down to his waist. The boy giggled at the fur brushing his skin as his father caressed his leg's more delicate side. He then placed his hand flat on the front of the diaper, rubbing and patting it. The father smiled as he groped the soft undergarment in his hand. The diaper gave him a strange sense of empowerment. His son couldn't even use a toilet, how could he even be capable of rejecting what his father wanted to do with him next? He didn't understand, and so he continued looking up at his father with innocent and dependant eyes. Crinkling the plastic and fluff in his grip for a bit, he finally gripped the tapes and gave them a little yank. With a loud rip, the velcro tapes unfastened and the father wasted no time pulling the diaper open to reveale his son's genitals. Seeing those precious little testicles and adorably cute, yet tiny excuse of of a penis stole the Sergal's breath every time he saw them. Such a little member like that needed a larger cock to play with. To watch over and protect them.

The horny dad unzipped his shorts and shifted his boxers beneath them. Soon he had his full erection poking out of the unzipped hole. Hovering his cock over the small boy on the changing table, the Sergal gripped it lightly in his hand and began to stroke. The beast of a man tilted his head around, getting a good view past his dick at his son's nude lower body. As e looked down, his son stared at the Sergal's cock. The slick and bright red member reflected the bedroom's light and combined with the movement of the furry hand wrapped around it, had the child's full attention. The horny dad had to stop mastrubating too often to prevent the boy from moving and reaching for his cock.

"Ah ah ah-" He said to the boy, who suckled away at his pacifier. "Here... look who came to pay you a little visit." He continued, reaching for the Spyro plush next to the stack of diapers in a compartment of the table. "Here, play with Spyro. You know he loves keeping you company during your changes." He said, handing the doll over while continuing to casually masturbate over the child.

The toddler was fascinated with his plush companion, tossing it above his face and catching it. Focused on pretending to make the little dragon fly around, he didn't even notice the drops of precum hit his skin. His father moaned silently as he stroked away at his member. Far from a stranger to the deed, this was just business as usual to the Sergal. His tail wagged behind him and he clenched his teeth as he began to pick up the pace. He was at his edge and prepared for the imminent release. Tilting his cock down, it pointed directly at his little boy's genitals. His stroking had become much more rapid, intent on finishing the job.

"Ah... ah~" The father moaned out, as the sticky warm love released from his tip. A generous amount of globs made their way onto the toddler, all aimed onto his own little cock or the chubby and bare pubic area around it.

The Sergal was positively glowing, blushing through the fur on his face as looked towards the ceiling with his eyes shut. He carressed his own face with his left hand while his right still gripped his dick, which a string of semen hung from resting into a glob on his son's groin. Opening his eyes, he looked down at the child before wiping his dick clean with his skin. Putting his member back into his shorts and zipping up, he assessed the mess he had made on the boy. The cum rested nicely atop the boy's groin here and there with the only runoff happening down his buttcrack and onto the diaper.

"Perfect." He said while his son brough the Spyro plush down for a kiss. "Looks like I don't need to wipe anything off this time." He gently took the plush from the child, putting it back in the compartment. Then he took the pacifier from the boy's mouth, dabbing the nipple on it around in the sticky mess covering his penis before placing it back in the toddler's mouth.

"There we go... you like daddy's cum, don't you champ?" He said, bringing the diaper back up between the boy's legs and fastening the tapes back.

With the deed done and the mess concealed, the father was convinced his husband would be none the wiser. The diapers had a strong enough scent to mask the smell of Sergal cum. A blessing that would pay off now, as the sound of the stairs creeking could be heard as a heavy figure was moving lazily up them.

The door pushed open and the Sergal turned to greet the red dragon who emerged within the frame.

"Hey there, sleepy head!" The Sergal said enthusiastically to the dragon while picking their son up from the table.

"Sorry, I kinda dosed off there..." The dragon spoke with a low growl of a voice, raising a hand off the floor to rub one eye beneath his glasses. "I don't suppose you two are ready for bed?" He asked.

"Of course we are, bub! Just got the little guy all cleaned up." The Sergal said, tickling his son's foot with his free hand as the boy giggled loudly.

"Oh, had a little accident did you?" The Dragon said as he made his way to the bed, climbing atop the large matress before removing his glasses and setting them on the bed stand. Lying on his back, the pillow and headboard of the bed propped his upper body and the Sergal slid onto the bed next to him, handing the boy over.

"Sometimes I wonder if you'll ever get out of those things." The dragon said to the boy while cradling him in his arms, looking down in adoration.

I'm sure he'll use the toilet when he's ready, babe." The Sergal said next to the Dragon, putting an arm around him and rubbing the side of his wedged muzzle on his husband's face.

The three exchanged kisses as both fathers clicked the lamps off on their bedstands. Another cozy night and the Dragon was still non the wiser of his husband's cum in their boy's diaper.