Author's Note: So, this was originally just going to be one one-shot, but I really loved writing vampire Elsa with human Anna and got the idea in my head of vampire Elsa taking care of sick Anna and decided to write this. I may or may not add more one-shots later. Also, for any curious to what Anna's bat plushie looks like, look up "Hotel Translyvania Mavis Bat form" because that's what the plushie is based off of. Anyways, enjoy.

Anna was curled up in the covers of Elsa's bed, coughing violently with a box of tissues on her side and a stuffed bat clutched in her arms and held against her chest. Elsa returned into the room with a bowl of chicken noodle soup and a spoon delicately balanced in one hand and a glass of water in the other. She put them down on the bed-side table next to Anna.

"How are you feeling?", she asked the red-head after the girl's coughing fit was over.

"I'm fine, Elsa. I'm not really hungry though, but thanks for the soup," Anna answered weakly.

"You need to eat to keep your strength up, Anna," Elsa chastised her thrall.

"What about you? You usually feed from me once a week, but ever since I got the flu last week, you haven't feed on me once. Don't you need to eat?", Anna challenged her vampiress.

"Anna, your body needs all the defenses it can get until it heals. It can't afford to have blood taken from it right now. Besides, vampires can go up to a month without eating. We just feel more comfortable if we eat once a week," the vampiress explained.

"Wait, so do you like starve to death if you go over a month without eating? But I thought vampires were immortal and couldn't die?," her thrall questioned with shock and a hint of worry in her voice.

"No, silly," Elsa chuckled softly, teasingly.

"We just become really weak from lack of food and have trouble moving and getting out of bed if we go more than a month without food. If we go for more than a week without food, it's similar to when you humans are hungry. We get pains in our stomachs and our tummies rumble. We only need to eat once a month to survive, but once a week to feel comfortable," the vampiress continued explaining.

"Are you in pain, Elsa? I'm sorry," Anna apologized.

"I'm fine, Anna. Don't worry about me. There's nothing to be sorry for. Just worry about yourself and getting better," Elsa reassured her thrall gently, before placing a soft kiss on her forehead and stroking her fingers gently through her hair.

"Now eat," Elsa commanded as she scooped some soup onto the spoon and held it up to Anna's mouth.

The red-head opened her mouth obediently as the blonde fed her spoonful after spoonful of soup, occasionally taking breaks to offer her sips of water from the glass. Soon, both the glass and the bowl were empty.

"Feel better now?", Elsa asked her thrall, smiling warmly.

"A little," Anna answered.

"I see you still have the bat I gave you," the vampiress pointed out.

"Yeah."

Anna began to reminiscence.

She and Elsa had gone to a carnival earlier that month and she had spotted the cute little bat plushie as a prize on a ball toss game. She was adamant about wanting it because it reminded her of Elsa. Even when Elsa tried to explain to her that she couldn't turn into a bat and even if vampires did turn into bats, they'd turn into vampire bats, not fruit bats like the stuffed animal was, Anna was relentless in her pleading. So, Elsa gave in and nearly threw her arm out trying her hardest to toss those balls into those cups until she finally won the prize for a very elated and grateful Anna. Ever since then, Anna and the bat had been inseparable, especially when she was feeling down. When Anna woke up from nightmares, she would clutch the bat to her chest and hold it in her arms. Whenever she was feeling lonely or homesick, she would clutch the bat. Not that she had any family to go home to since her parents had died three years ago, so when Elsa offered to let Anna stay in her old house where she had memories with her family after learning about Anna's homesickness, Anna refused, saying it was much too lonely and she'd rather stay with Elsa because companionship was better than memories. Whenever she was grieving her family, she would clutch the bat. The bat was always there for her, just like Elsa, her Elsa.

"Anna, are you alright?", Elsa interrupted her thoughts, noticing that Anna was staring off into space.

"I'm fine, Elsa. Is it alright if…I mean… will you tell me a story?", Anna questioned innocently.

"Of course, Anna," Elsa answered softly.

"Once upon a time, there was a lonely little bat who was sad because she really wanted a friend, but there were no other bats around. However, one day she noticed that there were lots of humans, so decided to make friends with them, but all the humans were afraid of her. Although she knew they had a right to be since she bit them, she was still sad, but then one day, she found a human who was just as lonely as her. The human girl was afraid of her at first too, but unlike the other humans, this girl gave the lonely little bat a chance and discovered that she wasn't so bad. Then, the lonely girl and lonely bat became best friends, weren't so lonely anymore, and lived happily ever after. The end."

"I like that story," Anna said sleepily through a yawn, fighting to keep her eyes open.

"Good night, my Anna," Elsa told her warmly.

"Elsa?", Anna asked groggily.

"Will you stay here and lay with me?"

"Of course," Elsa answered as she cuddled up in the bed next to Anna.

The vampiress didn't leave her thrall's side, except for to get her soup and water, until she was better.