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Daddy’s Lil Girl

Summary:

Lucifer takes his mentor relationship with you too far.

Notes:

GIFT FOR HORSE-CHAN !

ENJOY!

Chapter Text

Lucifer doesn’t know how his fixation on you started. He was just supposed to be your mentor and he doesn’t really understand how his admiration for you shifted into a borderline obsessed attraction. He was very proud to be by teaching you and he liked opening up your horizons to new things; but when you sat looking all cute and studious he couldn’t help but wonder what it would feel like just sit you on his lap and fuck you on his cock while he taught your curriculum. Lucifer fashioned himself out to be a very slick individual. He found little ways to touch you to get himself excited throughout your study sessions or whenever you were lounging around the house of lamentation. Some would be idle touches: casually holding your wrist, playing with the ends of your hair. Others would be like him trying to squeeze by you in the kitchen and lightly touching your lower back. He delighted in the little reactions he got from you; his gentle advances clearly flustered you. 

 

It wasn’t until Lucifer found himself unsatisfied with just the gentle touches that he made a boulder move. You had been studying seduction witchcraft, finding it difficult to put them into practice so Lucifer had an idea. 

 

“Come, darling. Come sit on daddy’s lap,” Lucifer ordered, patting his lap like you were an obedient dog. Hesitantly, you walked up to him with your scrolls in hand and sat down on him stiffly. He could practically feel the tension rolling throughout your body and he wondered if he was making you uncomfortable. 

 

That was far from the truth. You did find him attractive but . . . this was . . . inappropriate behavior for your mentor. You both knew that. 

 

You squeaked when he slipped one of his hands between your legs before he wrapped them around your waist, resting his chin on your shoulder. 

 

“Does this feel good?” He asked, grinning next to you. 

 

You shook your head, not confident enough to voice your slight rejection. 

 

Lucifer’s smile dropped and dissatisfaction bloomed on his face. “No? Don’t you want these personal lessons with me? To understand it better?” 

 

Nodding, you tried to ignore his wandering hands slipping below your uniform to caress your skin. “Then be a good girl and stay here.”

 

That’s how it started. The hour-long sessions of mentoring and studying turned into something more lewd. Lucifer lost the battle against his own desires, using your precious time as an excuse to feel you up while you sat on his crotch. His cock would be hard against you, rubbing against your soft ass while you skimmed over things. There were many times you spoke out against his advances, prompting slick jabs or heated arguments that always ended up with Lucifer getting his way. It was clear that he was a very, very stubborn individual when it came to demanding what he wanted. 

 

“Lucifer, that’s enough,” you uttered quietly. You tried to raise yourself off his lap as you closed the large grimoire resting in your palms. You didn’t make it very far off his lap before he snatched you back down, gripping your waist tightly. 

 

It was another long night of tutoring and you were past your limit of uncomfortableness with Lucifer’s touchy hands. Lucifer was also at his limit of your rescinded affection. 

 

“Did I say that was enough?” He growled in your ear with a tight lipped smile. “You seem to be under the impression that you’re in charge here. Let me remind you: you are gravely mistaken.” Lucifer released you with that warning alone, giving your ass a firm smack as you collected your things to leave. 

 

The time you spent with him gradually grew until your every waking moment was surrounded by him. He taught you, fed you, and sometimes helped you with your nightly routines. He did it all while pitching a tent in his slacks. The father/daughter dynamic forming between the two of you itched a part of him he never knew craved. You were his little girl he wanted to completely ravish, regardless of how you felt. 

 

“You’re sleeping in daddy’s room tonight,” Lucifer proposed to you one night after the two of you retired from your final lesson. Your nervous eyes met his intimidating ones, as if daring you to challenge him. Your eyes dropped to your feet and you nodded stiffly. He smiled warmly at your response and held out his palm to guide you to the washroom. “Good. We’re going to get ready for bed now.”

 

You let him guide you to his private bathroom where he shut the door, the sound of the lock clicking into place ringing in your ears. The bathroom was too bright for your sensitive eyes thanks to studying in a dim environment. Lucifer was standing in front of the doorway, his arms across his chest as he blocked your only exit.

 

“Can you strip by yourself? Or do you need daddy’s help?” Lucifer chuckled out. You know that if you choose to take off your clothes without his help he would be staring at you intently the whole time. But if you asked for his help like he wanted you to do . . . he would do things his way no matter what you said or did.

 

“I can do it by myself, thank you.” You quietly whispered out, already starting to work on taking off your pants.

 

The atmosphere suddenly changed in the bathroom. “Thank you, what? Are you not forgetting something?” Lucifer growled out.

 

Fear took over your system. Your teeth were grinding down on each other as you felt a ball of pressure form in your throat, rendering you speechless. Tears burned in your eyes as you tried so hard to keep them at bay, swallowing the clump of nerves down your throat. “It’s fine da-daddy. I can do it myself. I’m a big girl.” You looked to the ground and blinked your tears away, willing for your hands to stop shaking as you slid off your pants and underwear down to your feet where you kicked off your shoes and socks. 

 

“Such cute underwear I picked out for you, don’t you think?” Lucifer teased out, flicking at the duck printed panties with his foot. He bought them for you after he threw and burned away all of your normal panties, especially your thongs and lacy ones since they were ‘too grown up for his little girl’. Next was your shirt, where instead of wearing a bra you were wearing just a simple undershirt since bras were also too grown up as well. You felt a gloved hand cup your cheek, moving your head until your eyes met ruby. “Why does my little girl cry? Is there something daddy can help you with?” Your hands instinctively went to hide your private parts before you felt Lucifer’s other hand tug them away to your sides.

 

“Ah, what did I say about this?” Tsked out Lucifer.

 

“No hiding from daddy

 

You let him take care of you that night; washing you down, brushing your teeth, things you would do to one that is a child. It was embarrassing, humiliating almost, to be treated like you were incapable of taking care of yourself. He’d check your mouth, using the pad of his fingertip to scan it for abnormalities. It lastly checks your tongue, his face coming close to inspect it. 

 

“God, you have such a cute and little mouth. I’d love to fuck it,” he mused, watching your eyes widen at his statement on fear. “If you let daddy fuck it, I’ll cut back on our study time tomorrow.”

 

Against your better judgement, you agreed out of fear of upsetting him mostly. “Good girl. You’re so good for daddy.”

 

You weren’t prepared for the way he would grab your head and force his cock down your throat, uncaring about how rough he was with you. Tears welled up in your eyes as he brutally fucked your mouth as he plunged his large cock repeatedly down your esophagus. Lucifer reveled in how ruined you already looked choking on him. The tears streamed down your face, slicking your pretty skin while you struggled to breath. It fueled his lust for you and pushed him over the edge and cum down your throat. 

 

Soon all your nights were spent like that: you being forced to fuck and suck on his cock like good girl. Every night after you brushed your teeth, it was like clockwork. Cum running down the sides of your face and into your tummy while he looked down at you, eyes crazed and filled with lust. Whenever he’d finished with you on his pristine bathroom, he’d carry you to his chambers, ready to spear you with his fat cock. 

 

“Daddy, that hurts!” You’d whine, voice trembling while you tried to shield your pussy from him. 

 

“You know, not everything that hurts is bad. Sometimes it can feel really good,” Lucifer reassured you as he pried your legs open. The weight of his hands firmly holding your legs in place made you relax, if only for a little. 

 

“It can?”

 

He nods, smiling as you fall for his bait. “Do you want to feel good?” 

 

Hesitantly, you nodded. 

 

Lucifer felt a sinister grin stretch across his face. 

 

He promised he will make you feel good. He promised it wouldn’t hurt. But Lucifer wanted to make it hurt; he wanted to see your delicious tears stream down your face as he split you on his cock. The way you clamped down around him every time he plunged into you made his toes curl. When you screamed out his name whaling that it hurt but still felt kind of good something clicked inside of him. 

 

“Call me daddy while I’m fucking you,” he spat, slamming his hips rapidly against yours. When he’s met with silence other than your sobs, he grabs the belt from his pants and wraps it partially around his hand; irritation swells up within him. A loud crack rings out in the room as the leather from his belt meets the flesh of your ass cheeks harshly. “ Don’t make me say it again.”

 

“D-daddy– please! I-it hurts!” You sobbed out, feeling Lucifer’s cock stirring up your insides. “I-I can’t take anymore!”

 

“Yes you can baby girl. I know you can,” Lucifer encouraged you as he slid inside your pussy once more. You cried out at the painful stretching, gripping along his length while his fingers embedded themselves into your hair. His thrusts were relentless against your body; slapping with a loud crack every time he fucked your cunt. 

 

“O-okay,” you whined out, crumpling under his force. Lucifer grinned and shoved your head into the mattress. 

 

“That’s daddy’s good girl.”

 

That was enough to fuel Lucifer into a long night of ruining your guts. There were many nights like that after that him forcing you to sleep with him, fucking you while you’re knocked out, and sometimes thrusting into you to fuck you awake. He loved the complete and utter control he had over your body. It made him hard with lust every time you called him daddy. He enjoyed burying himself deep into your cuntlate at night and filling your pussy up with his cum while you were asleep. Lucifer knew he was grooming and breeding you to be the perfect slut, daddy‘s little girl.