(The relationship between Alastor and Lucifer grow stronger after a week)
The next time Charlie meet the eye-catching red deer was after a week since then. Charlie was happy that the deer was fine and to her surprise, the deer wasn't as afraid as it were now. Charlie could even ride on him or touch his soft fur whenever she wanted.
"His name is Alastor," Lucifer said, his voice softened when Charlie asking about the deer name. Charlie was always curious about why the deer always wearing a muzzle and collar because the rest of the deers in their backyard don't wear it.
"He was... some kind of special deer, sweetheart. I don't want him to bite you!" Her father would always say the same answer whenever Charlie asked about it. Well, it might be true because Alastor wasn't acting like a normal deer. He always had a large smile on his face and his teeth were deadly sharp! His eyes were bigger than normal deer, his fur was longer and softer than any deer she touched.
Alastor also a huge troublemaker. He would always help Charlie when she wanted to prank her parents and in the end, both of them had been punished by Lilith. When Charlie was down or unable to solve the question, Alastor would be here, staying with her until she solved her problems. Alastor also gets along with her two bodyguards, they loved to sleep on Alastor back while the soft jazz playing in the living room.
"A-Alastor?!" One night, Charlie had a nightmare of both of her parents and Alastor got killed. She cried loudly while calling for Alastor in the darkroom. Alastor immediately woke up and nudged her with his nose. Charlie gasped as she feels Alastor soft warm fur.
"Alastor..." Charlie sniffed, hugging Alastor's neck tightly while she keeps sobbing.
---
Alastor sighed, turned his head to see the sobbing princess. She was a sweetheart and the kindest demoness he'd know for his entire life in hell... Well, in the palace. Quietly, he transformed back into his human form and for the first time, Alastor wrapped his arms around Charlie gently and whisper soft words to her.
"Alastor?" He could hear Charlie whispering his name, her big watery eyes staring at his direction but she couldn't see properly what Alastor looks like when he's in human form. Alastor relieved that he had a good vision even in the darkness.
"Shh, I'm here... I'm here, darling... Now sleep." Alastor hushed, Charlie nodded and lay down, her hand still holding Alastor's hand tightly.
"Will you stay, Alastor?" The child asked. Alastor hummed and reply a soft "yes". The princess sighed in relief and slowly fall asleep by Alastor calming singing. When Alastor make sure that Charlie was asleep, he carelessly brushed Charlie's hair and transformed back to his deer form, He'd sleep on the carpet now.
---
"You have a nightmare again, Charlotte?" Lucifer asked, frowning and a worried look on his face. Charlie giggled, hugging Alastor who's standing beside her and shouted happily.
"Yes! But Alastor calmed me down!" Lucifer hummed and smirking at Alastor, who's smiling wider in return.
"Well, that's good then!" Lucifer said cheerfully before they had breakfast. Alastor got himself a huge piece of venison but being in a deer form, he had to eat on the floor. Lucifer took off Alastor muzzle before the radio demon dig in. Alastor obediently letting Lucifer put it on him after they had their breakfast. Charlie waiting patiently for Alastor when Lucifer said that Alastor had to take a bath every day, she was curious about what kind of deer was Alastor was, since she notices that her father was a little protective toward him.
---
"Do I still need to wear the damn muzzle?" Alastor asked, sitting on Lucifer's bed while waiting for the king to take off the muzzle. Currently, Lilith was out for vacation so only Lucifer alone in the room. Lucifer took off the muzzle and tossed it to the side.
"Nope~!" He chuckled when Alastor mentally cursed him. His ears perked up when Lucifer sits beside him with an odd smile.
"Hey, I'm bored! Entertain me, radio demon~" Lucifer purred, placed a hand on Alastor's shoulder and licked his lips. Alastor couldn't help but chuckle, he kissed Lucifer and hissed.
"As you wish."
---
"Such a greedy slut!" Lucifer teased as he slapping Alastor buttock while thrusting inside him mercilessly. Alastor was moaning messily underneath the king, scratched the mattress with pressure. His eyes turned into radio dials by the overwhelmed pressure, spinning rapidly each time Lucifer ramming into him fiercely. Alastor ass was beet red and he could feel a sharp tingling coming from his buttock.
"More..." Alastor growled. Lucifer chuckled and speed up, which caused Alastor to moan his name and turned his body around to wrap his arms around Lucifer's back. Lucifer groaned, kissed the tempting mouth of Alastor and clasped Alastor's buttock with both of his hands.
"Mhm!" Alastor mewled as they released at the same time. Lucifer moaned, shuddered when he released his load deep inside Alastor, filling the radio demon up.
"Ha... ha... We should do it again!" Both of them panting heavily. Lucifer slowly pulled out his soft penis and lay beside Alastor with a satisfied smile. Alastor chuckled and kissed the king before he whispered.
"Yeah, but not always! You are being way too rough!" Lucifer laughed and poked Alastor's nose playfully.
"Ha! Is that how you speak with your master, Bambi?!" Lucifer narrowed his eyes. Alastor only rolled his eyes at the nickname he gives but then he was too tired to protest, the radio demon only sighed and slowly fall asleep in Lucifer's cuddle.
---
(Welp, this is getting more fluffier than I imagined but I don't hate it! :3)
![](https://img.wattpad.com/cover/201183140-288-k107257.jpg)
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The king's pet (Lucifer x Alastor)
Fanfiction(Discontinued) The story took when the first day Alastor went to hell. The moment when Alastor arrived in hell and discovered his power, he goes on the rampage at Pentagram city. He possessed raw power which was never before seen in a human soul and...