A shiny Umbreon stirred in a crib, too sweaty and far too horny to sleep on a warm summer night. He opened his eyes, and lightly illuminated the markings of his fur. With the baby's room alight with his gentle blue glow, the Pokemon looked around. His fully erect cock had emerged from its sheath and rested, throbbing on the diaper of the infant sprawled beside him. Umbreon stood and stretched before sniffing the diaper of the tiny human, a habit he had gotten into in order to alert his masters that their son needed a change. To the dark type's relief, all he smelled was the sweet scent of baby powder. The horny pokemon was never going to get any sleep in his current state, but he had an idea.

The black furred pokemon left his bed mate behind, moving to the bars of the crib. His yellow eyes stared at the tall and metal cylinder that sat on the floor beside the changing table across the room. Umbreon squeezed through the wooden bars of the crib with ease and his paws hit the carpeted floor beneath it with a gentle thump. Crossing the open floor in the middle of the room while gracefully avoiding the occasional stray toy, the pokemon had reached his destination. He eyed up at the tall, metal diaper pail before him before moving round to the other side of it. Umbreon butted his forhead against the object and gave it a nudge, knocking it over with a rather noisy thud. His ears perked up at the noise and he bolted back towards the crib, leaping up and feigning sleep in his usual spot, only this time with his back torwards the infant. Eyes open and boner hidden from view, the pokemon listened to the sounds of footsteps approaching the bedroom. The door gently creeked open and a long, vertical beam of light had appeared on the wall behind the crib.

"Huh... must've been something in the trashcan outside." A man's voice whispered before the sound of the bedroom door closing was heard.

Umbron listened to the footsteps once more, going away from the baby's room, thankful his master had not opened the door enough to see the mess. Once again Umbreon stood up and repeted the journey he had made moments ago, observing the mess he had made as he arrived. The diaper pail was on its side with the lid popped open and a pile of used, balled up diapers spilled from its mouth. Several had even managed to roll their way across the floor a little ways from the trash bin. The horny dark type began to sniff his way through each of them, noting their conditions. Either too old, messy or simply too used, Umbron searched to find one that was to his standard. Finally he found one at the edge of the pile, soggy with urine and still somewhat warm. Umbreing clenched his teeth onto the folded wastband of the wet diaper ball. He placed it at an ideal height on the pile and tore the outer most tape open, pulling the waistband out and revealing the spiral shaped side of the rolled up undergarment.

The horny pokemon mounted the diaper without hesitation and shoved his cock directly into the center of the roll. With his rocket wraped within the soft insides of the diaper, Umbreon relaxed himself and began to pee directly into it. Feeling his own fresh and warm urine begin to soake its away around his member, the pokemon began to thrust in and out of it. He was slow at first, allowing the hole time to expand while he savored the slick and warm insides of the diaper. Then he began to hump at it with more aggression. His fun was anything but quiet, as the pile of balled up diapers crinkled and shifted from all of the action. It was finally time, and Umbreon buried his nose into the diapers, huffing the variety of smells as he hit his orgasm. Unloading his cum into the diaper he had been very vigorously making use of, he breathed a sigh of relief.

It took him a little while, but Umbreon managed to clean up his mess without any trouble. Setting the pail back upright, the dark type was able to pick each diaper up with his mouth and toss them back where they belong. He made his way back to the crib after a job well done and leaped back into bed. Lying down next to his little bed mate, Umbreon admired the little human for a bit. But his focus quickly turned towards the pacifier in the infant's mouth. As he watched the sleeping child suckle instinctively on the object in his sleep, an idea began to form in the pokemon's head. But that would have to be for another time, as Umbreon finally layed his hed down beside the baby's and fell asleep.