She  was near freezing. It was quickly a regret to not have found somewhere to hibernate for winter, of course she can do it now, but she's also very hungry and she needed to have a full stomach first.
Usually pythons such as herself do not hibernate, but due to seeing her brethren doing it to sleep through the winter and awaken when the freeze was over, she found himself favoring it over freezing to death as he is now. Slithering through the snow was torture.. she quickly found leaving the jungle to explore was one of the worst decisions she ever made in her long life, but she was in need of some adventure and of course, find some new things to hunt. 
She watched as the trees gave way to towns, to houses, to more people.. have humans populated so much? Well, she guessed, since they left the wilds of their origin and learned how to control the Red Flower and Fire Sticks, they no longer have predators to keep their population down.. also The Law of The Jungle aided in that. For hunting man is forbidden due to that making more men come and attack. 
Kaa was out of the jungle now and had little care of the law when she was this hungry and cold. Yellow eyes looking ahead, watching mancubs play, not noticing her presence in the snow even with her giant body. She guessed since the sun was going down she was less seen.
One of the cubs left a book behind as they left for home. Kaa looks at the book when she was close enough to it and undetectable. She had learned over the years to read the human's writings and read carefully. Night Before Christmas.. so that's what this night was? She carefully used her tail to flip through the pages and see the pictures of homes decorated with different colored lights that she dare say could rival her hypnotic eyes. It confirmed that this was Christmas or close to it due to the lights on the houses she had past by.
Night was falling upon her, taking away what little warmth she had. She was curious now about the large man in red and his reindeer... such strange customs. She finally has an idea.. if this Santa can come into people's homes than why can't she? Only she would be leaving with the presents instead of giving.. her stomach rumbled and she knew what she would be doing this night. The Night Before Christmas, how she wanted to chuckle some.. for if this Santa did exist, than he can be a good addition for her own belly and maybe a reindeer or two.. 
---
No one was out tonight as she slithered along the sidewalk. Usually there was a few, but thankfully it seemed that everyone was warm inside their little homes and do not know of the dangers outside. Even the dogs that usually barked at her were inside the home. She'd have to wait. Much to her displeasure.
Only when the lights were off (aside from the lights on the tree inside and along the roof outside) did she begin to make her move. A giant python that eyed the first house.. she knew how challenging it was to get inside, yet she will happily accept the challenge. Her nose brushed along each window and door, searching the first house to get inside.. and of course, luck came when she only felt the screen of a window that led inside..
Pulling herself inside, while if one had watched her, would look as if she'd break the window or wall underneath her weight, but years of learning to be silent aided in her being also able to be careful.. She reached inside finally and the warmth made her almost hiss with delight as the heater warmed her freezing body. She felt temptation to just curl up right there for awhile, a temptation she made herself ignore and reminded herself why she was here.
She slithered through the halls, flicking her tongue for the human scent. She would find a grown woman asleep in her bed first.. exhausted from making a holiday feast that morning. If only she knew what holiday feast would be tonight. Kaa would waste no time with her.. but of course she would be careful with her to.
Sleeping prey became a sort of game with her during her time in the jungle. How far can she swallow up her food before it wakes up. Either way she always gets her prize. Carefully she pushes her nose under the blankets the female slept under. Clothing was always on these humans, never the tastiest, but also never stopped her.
Her nose found the feet and she opened her mouth to take them into her maw, slowly she began to move up, feet and legs being pulled into the maw before she swallowed, dooming her prey. Kaa was quicker than she intended to be, but she didn't want to savor this one due to her stomach aching for the meal.. so she was careful but quick.. swallowing her first meal of the night. Half way, she would wake up, not noticing due to her still half-asleep mind. She found she couldn't move her legs as much and was oddly warm and wet that seemed to go up.. she couldn't move her arms suddenly either and she couldn't see what was going on due to it being so dark and Kaa was hidden under the covers aside from a large bulge that was her head, unseen.. the woman was doomed, especially when she somehow thought she was still dreaming. The warm wetness worked over her head and she was swallowed, disappearing inside the snake.. Kaa  moved carefully off the bed, swallowing a few more times for her food to go into the stomach that happily claimed the sleepily confused woman that slowly seemed to wake up far to late.
Kaa tasted the air. Seems only her scent was here, no one lived here with her.. a bit of a annoyance but there were other houses that can provide. 
So with a belly, not at all full but not hurting as much, and with much reluctance, Kaa would leave the now abandoned home to venture towards the next house over. 
No one was out which was still a relief. Though since it was so dark, no one could see a large serpent anyway, unless they had a flashlight or car lights.
---
The next house was so simply easy to get into that they may as well have left a sign that says: Come In, Food Is Here. The sliding glass door was half open and she made herself at home. Only thing that made her worry was the fact she heard laughter.. a male and female by the sounds of it. She shook her head, not as easy as the last meal that was still wiggling in her stomach, but still easy enough for her. She carefully made her way through the hall once again. A shower was running and turned off, they were talking and laughing.. She slithered in-- far to late to know her mistake.
The couple looked right at her with probably as much surprise as she reflected, both wrapped in towels. She moved her head back, ready to strike out of instinct before the surprise melted away into a chuckle from the woman. "Look at the size of it! It's beautiful" 
Beautiful? She tilts her head confused, why weren't they screaming or trying to run or fight? Instead they were admiring her.. She smelled them again on her tongue.. the taste of what humans drank caught her tongue, the drink that made them foolish.. she guessed though that somehow there must have been something else to make them have no fear... more odd still is that they seemed aroused, they had it before she got here.
Humans were truly strange.. especially when they lay on the floor before her, towels removed and forgotten. They began to mate right before Kaa who had to chuckle at them, it was as if they knew they were going to be eaten up and decided to have one last mating before Kaa took them.. it wasn't uncommon since her prey every once in awhile requested that they have one last mating before she takes them, leaving a new generation to live on. Kaa tonight though would not be as merciful.. she wanted them.. and they just looked so willing before her, moaning.. 
She used her coils to wrap the up so they were laying on each other, the male still thrusting, both moaning louder as the coils rub around them. Kaa was able able to eat animals much larger than a human, so two humans were still nothing to her but a little more work.. She unhinged her jaw, they didn't notice. Even when the lighted room became dark and wet from the jaws closing around their heads,  removing a coil so she can go down their shoulders, down their arms and body, pinning them together, gasps and moans of pleasure continued though muffled. Was this more arousing to them? Being eaten alive? Kaa didn't care as she continued to devour her intoxicated willing meals. 
She travelled down their bodies, savoring their naked forms. There was a sudden pause though and they had grown limp, reaching the climax in unison, but with their bodies pinned, the male couldn't pull out of his mate and combined with the snake eating them seemed to keep them moaning still in their final pleasure as Kaa travelled past their hips, tasting the salty liquid of their climax that was a good addition to their flavor. The strange juices were quite a treat for  her, but it didn't stop her from finally lifting her head up, though it being a little challenge due to her having two full grown humans in her maw and down her throat. She lifted up and let gravity aid her in making them slide down her throat and down her long body to fill her awaiting gut with their squirming bodies, empting yet another house. 
And she once again, left out into the snow, the humans she had would last her a few days, but she wanted a place warm to sleep and a full belly that would last her longer than that. Maybe she was just getting greedy at how easy this had been so far, dare she say these men were easier than the monkeys that she took pleasure in hunting and reminding that their King Louie is not the lord of the jungle, much less Shere Khan. She digresses though, man would not serve her as their new lord after all, and she had to remind herself that while she had no trouble with a lot of monkeys, men had weapons that, if she wasn't careful, could kill her.
---
A reminder as she approached a larger house, one that was not hard to get into as she looked at the chimney with curiosity. There was no smoke like in the story, meaning that no red flower to protect them and Kaa got an idea. She barely felt the added weight of the three meals she dragged that wiggled still with weak defience under her scales and muscle. She made it slowly up the garbage cans and onto the patio that led to the roof, slowly but surely she made it fully onto the roof and had to chuckle. To think she was using Santa's own entrance for her benefit. One careful flick of her tongue, while it tasted of ash and smoke, it was hours old and judging by the lights being off or not used, the humans were asleep. So she slid down the chimney, caring her own 'gifts' she was rewarded with, and aiming to get more. Down the dark she went, careful so not to get stuck. Her scales scrapped along the side, warning her while she can get down, there's no luck in getting back up, getting stuck a few times was a struggle but she managed to make it out of the fireplace in one long piece. 
It was there she met her first man cubs, two were laying down on the couch, and one had been staring right at her in shock. Again Kaa was taken by surprise but slowly she pulled herself out, coiling up and looking at the young girl.
"U-Um Santa?" The little girl whispered and Kaa wanted to chuckle, oh how young these cubs were it seemed.
"No little one, I am one of Santa's helpers. The Christmas Python" She was quick to react that it surprised even her. "For you see, while Santa tries to deliver presents to all the little boys and girls, he needs a few helpers." She moved her tail to her face to gesture that they need to be quiet. Her voice was lowered. "If your parents or any adult find me than you can't get the presents I gave you and that'd be sad because you've all been such good cubs."
The little girl seemed to accept this lie as she looked at the size of the python, impossible size in her living room. Kaa was probably 35 feet long if not bigger, her head so much larger than the girl's and compared to the biggest snake she though she saw in the zoo which was only about ten feet. Her face brightened. "So you will be leaving the presents and eating the milk and cookies?" She asked.
Milk and cookies? Kaa looked at the little plate on a table and the cup full of milk. "Yes I will be eating those to" She didn't add what or whether who she will indeed be eating first. She had been actually pleased that her human speak hadn't faltered over the years and the child can understand her perfectly. The little girl must believe her to be a magical snake indeed.. could she use her innocence to satisfy her she wondered? "This may sound strange, but all the presents are in my stomach, you can get them if you want to"
"Aren't we supposed to wait?"
"Hmm as you three were so good and since you saw me, I think it's only right to give you your presents early. And if your parents ask, than you can tell them that the Christmas Python, Kaa had given you permission."
That satisfied her childish mind enough and she went to wake her other sister and brother, telling them about why there was such a big snake in their living room and their faces lit up just as much as the girls. They were up to do anything for those presents and Kaa was looking at three succulent and very willing presents before her. "You have to climb in one by one" She instructed kindly to them. "You can even spend the night if you so desire, until morning."
The girl she spoke to approached the snake who opened her maw and dislocated her jaw so to swallow her up quicker. The foolish girl climbed right inside and Kaa tilted her head back and with only one large and audible swallow, she slid right down towards her false prize, not knowing at all that she herself was the prize. Kaa opened her mouth for the next courageous meal that walked towards her maw.
The boy and girl watched the bulge that was once their sister travel down and were happily ready to be next that they nearly pushed each other out of the way, the boy winning in the end and climbing happily into the jaws of the predator that chuckled. He would be pushed into the back of the maw and strong throat muscles pushed him down the tunnel that felt almost like a wet tube slide. 
His sister would be next, the last one. Kaa stopped her from going in for the moment. "I have a favor to ask you." A pause until the girl nodded eagerly. "Can you unlock and open the front door slightly?" A questionable look made her continue her Christmas Python lie. "While it's easy to slide down a chimney, it's so hard to go back up and I like using the front door as an exit since it's easier to be out in the street so Santa can come by on his sleigh to give me a lift to the next home" The long lie was enough and the girl happily unlocked the door and opened it a crack, enough for Kaa to exit and enough to not have anyone notice.
"Thank you, little cub. It's your turn next. It is dark in there and the presents can wait a little if you want to sleep, I'll have you out before dawn." The girl was already on her way to the wide open jaws that came down upon her, not knowing for one second that she was tricked into just becoming willing meat for the hungry snake. The final gulp sent her down to join her siblings who probably had told that they can sleep and Kaa would have them out by morning. She guessed the other three adult meals had long passed out or thought they were dreaming.
Kaa eyed the house, three cubs were delicious. But she wanted more, so she began her search for the parents of the former children. And she'd find that they hadn't stirred at all while their children were eaten alive. They were together in the one bed, a bit tricky but Kaa hadn't stopped yet. So she was careful to take the female  first, repeating her tactic like she did on the first house. Her jaws unhinged and she moved slowly and gently up her legs, taking them in, she was careful to move up instead of pulling the wife down and off the bed, she wanted this to be a silent death. She worked her way up, so careful that as she moved up, she didn't add on more weight than what was there. The more the woman disappeared into the hungry predator's jaws, the more the predator came up on the bed. The woman began to moan out which made Kaa worry, so she sped up as quickly but carefully as she could. Kaa was not in the position for hypnotizing the male so she just ate her up quickly. Up her stomach and over her breasts, taking her head in at last and silencing her moaning that grew quiet in her throat as Kaa swallowed the last of her and sent her sliding down off the bed and towards the snake's finally noticeable stomach that was getting full of full.
Finally she was on the bed, laying next to the oblivious and sleeping man beside her, golden eyes look at him in the dark, sizing him up with ease. She would move carefully and open her mouth wide again after positioning herself, his head sliding in and hot breath washed over him, making him shiver in some delight as Kaa finally could take her time without anyone interrupting them, her jaws savored his flesh, tasting the meat that was half naked before her. She worked her jaws over his body, swallowing his head into her throat where little air was, slowly she worked her way back under the blankets, gulping down his chest and over his stomach, tongue licking up every inch she could as she ate him and it seems the lack of air and sudden wetness woke him up. He struggled, confused on what was happening but Kaa just hissed in enjoyment, loving it when they wiggled as she worked her way down his waist, noticing a little bulge sticking out under the underwear fabric. She smiled some, deciding that since he provided her with a great meal, she should provide him.. tongue was careful as it snaked out and wrapped around the member under the underwear, gaining a sudden thrust and a moan that muffled out of her throat. The cock began to stand fulling erect as the tongue worked at it, the tip of her tongue going around the tip of his cock, his hands struggling to move towards the tongue to get it away, breathing quickened as she pleasured the male, all good things must always come to an end though and she could only enjoy her meal so much. So she finally mercifully or unmercifully, let go of his cock that was leaking precum, soaking his underwear. Kaa was lifting herself up, taking the blanket with her, revealing, if anyone was around to witness, a giant serpent with human legs sticking out that kicked weakly at the air and slowly descending down into the snake's body, disappearing with each gulp.
With one final gulp, one more house lay empty and Kaa made yet another exit, full of five new Christmas gifts. "I must have been a very good python this year" She chuckled to herself as she exited out the door, carefully closing it with her tail when she was out.
Her stomach had grown noticeably, much to her joy, yet she was still cold and a little hungry still. Maybe a little greedy to.
---
Slithering along the streets, enjoying the new wiggling within her, she felt some energy to go on. Her body leaving a trail in the snow behind her of all her hungry visits. She would approach one more house, this one tasted more of cubs. Her eyes look across the street once more, still no one. 
So she slid inside through the gate and along the trail leading to her next home. Slowly she moved in through an open window and made it inside the large house. It was so nice and warm within, and very big. She could get lost in here if she wasn't careful. So she carefully followed the scent of cub on her tongue. 
There were so many cubs in the rooms that it was like ringing the dinner bell for a buffet for Kaa. Children of all ages were sleeping or up and talking about things that they didn't notice the giant snake pass by in the darkness.
She was searching rooms, figuring which would be best. She slowly finally found herself catching the attention of the small humans who followed her with curiosity and awe. They had never seen a snake her size before and some of the older ones noticed the bulge she had in her stomach and surely that meant she wasn't hungry, a mistake they would soon learn to late. Kaa moved onward and made it to the huge Christmas Tree, the fire illuminating her scales, creating a beauty on her as well as warming her. The many children that gathered, reminded her to much of the monkey tribe that watched her dance and fell under her hypnosis from her dance. She looked at each of them, seeming to smile at her audience and slowly began to move around in her dance, those that watched were doomed.
As she danced, they were drawn in, watching without seeing, slowly losing their sense of running. She hissed in some rhythm as they came in one step closer, lost in the beautiful dance. Nothing mattered, they were safe here, safe with her, with Kaa. They were her's, mind, body, and soul.
She was careful as she moved around the room, blocking the exit, not that it mattered. She shown how long she was as she moved around the room, in a way she may have resembled the size of a titanoboa but who could be sure. She moves towards them, seeing them watching her every move, wishing to be closer. A wish she will fulfill as she moves in with her jaws open, ready to eat her hypnotized prey. "Trust in me" She whispered and they trusted in her, mind gone and full of a need to trust her and help her. Kaa would feed well, swallowing smallest to biggest without any prejudice, little bulges sliding down her throat, one after the other, happy to satisfy her every need. She noticed that they watched her eat and watched their former friend or sibling become only a bulge that slide down her long body and stopping at her belly that wiggled happily. She enjoyed her snacking, getting fuller and fuller, filled with human meat that would take months to digest, she found a new place to indeed enjoy her food.
She saved one for last, one man cub that oh so reminded her of the cub she lost when the annoying bear stopped her from her feeding, sure this was not Mowgli, but it was a nice little idea that she finally caught the cub. She opened her maw for her dessert and he pushed himself in, laying on her maw, letting her tongue lick over his body before she jerked back, drawing more of him inside her jaws that closed, only his legs sticking out until she slurped those up to and swallowed him, sending the last meal for the night to join his friends.
She looked at the few remaining children that had not gotten the chance, much to their sadness. Kaa had eaten a lot of children and how she wanted to eat the rest, but her stomach, now very full told her otherwise. Also there were other children in this place that hadn't been hypnotized and could very well have told someone about what was happening. So she decided it was done but she promised she'd be back.
A final act, she carefully hypnotized the remaining children so they would not remember what happened to their friends and they fell asleep, believing that the python was just a dream that will be forgotten as they wake up.
She would slither slower now, her belly was much larger now, one could see some movement within still of squirming meals. Within the belly they were happy to please the snake, having no idea that pleasing her meant digesting as her food. Oxygen would run out soon enough with so many little bodies breathing.
---
Kaa would find the furnace room, dark but warm. No one could see as great as she could in this dark room, still she took no chances and carefully hid behind pipes that if one happened to spot her, would mistake her for pipes, even with her bulging stomach.
Finally she found a resting place and took to finally hybronating down here while her prey digests slowly in the months, becoming less noticeable human and more just mush within her.
The morning that came, no one knew where so many children had ran off to, they checked everywhere in desperation. One adult checked and looked right at Kaa before heading off, not knowing how close she was to knowing where the children were. In the days that followed, there were missing reports on the people in the now empty homes, fear came and gone when no one else disappeared. The trail had disappeared by the fallen snow.
---
The snow began to melt and spring was beginning to return to the world. And with it, Kaa awoken, her stomach once again empty. She would dispose of the remaining evidence in the forest in the back and once again, her hunger returned. And the thought of more easy meals made her nearly salivate.