Thank you so much to Admin Red over at @supern-a-vengers for
their work on requests. I took the foundation of what they created and spun it
to my tone but the overall ideas and creativity came from them, I just morphed
it into my style of writing. THANK YOU again Admin Red, you’re the best!

For this one, two asks were combined into one and I really
like how it turned out.

Mayuzumi and familiar peacefully run a potion/magics shop
but trouble shows up in the form of a thief.

Mayuzumi is seduced by a vampire and when she bites him he
gets more turned on instead of afraid (NSFW)

---

Stepping over a small pile of light novels, a black cat
meows at his witch drawing the grey-haired male’s attention momentarily away
from the pages before his eyes and though his expression remains blank
communication is achieved thanks to their years together. With the snap of his
fingers, Mayuzumi produces a meal out of thin air for his familiar, the latter
meowing a thanks before digging into the supernatural delicacy.

As he consumes his meal, the cat’s ears twitch when Mayuzumi’s
smooth voice breaks the silence. “You’re lucky you weren’t a dog.” He pauses
momentarily in his chewing, a silent indication for elaboration which Mayuzumi surprisingly
provides. “If you’d been a dog like that damn Kuroko’s familiar I’d never have
accepted you. But seeing as cats are better than dogs you’re another point of
proof that I’m better than him and there’s no chance of his winning against me.”

The cat goes back to eating, his rolling eyes indicative of
him not being impressed by this impromptu and completely unnecessary claim of
superiority by his master. Just because that warlock has similar tastes and
styles in his trade of choice doesn’t mean his witch needs to constantly be obsessing
over him. Sometimes the familiar is curious as to what happened in Mayuzumi’s
coven to warrant such a consistent and seemingly unbalanced hostility towards a
fellow magic user who for all intents and purposes seems content to let bygones
be bygones but his is not to wonder why.

As he continues eating, he hears Chihiro moving about the
store, restocking shelves, making sure labels face forward and going down each
aisle presumably to check inventory. Overall, they exist in peace, the
tranquility of the store a marked improvement over where he came from. It helps,
of course, that his new master happens to own one of those old-fashioned books
which contained a rarely found spell capable of turning him human, an added
bonus obtained through swearing loyalty to Mayuzumi.

A few blinks and one swish of his tail allows the
transformation and he stretches his limbs as he speaks in a hushed tone to
allow his vocal chords to adjust to the forming of words instead of meows. “Mayuzumi,
do we have all the ingredients for that one order?”

Humming, the witch continues his task, now having moved on
to rearranging books misplaced earlier in the day by browsing customers. His familiar
frowns. “That’s not an answer.”

Sighing, Mayuzumi relents to speak, “No. We’re missing two
drops of red dragon blood and the nail of a vampire.”

A chime from the door indicates the entrance of another
patron, one clad in a black cloak covering their face. “Welcome to Five Forward,
where your magic needs are met with precision and discretion,” the familiar
recites. He frowns slightly at the lack of recognition but not every customer is
as friendly as their regulars, however something about this one makes his sixth
sense stand at attention. With a snap of his fingers, he’s back in his cat
form, stalking on the other side of any aisle the newcomer walks down.

Anyone else may have missed the motion, but the cat’s eyes are
honed to catch such subtlety. Quick as a flash, he rushes under the feet of the
customer one paw with descended claws slashing their ankle while the other
cleanly rips through a hidden pocket releasing a handful of items stowed there.

“Shit,” hisses the thief, pivoting on their now nearly
healed ankle. The commotion has drawn Mayuzumi’s attention and he rushes to cut
off the retreating figure, her hood having fallen to reveal pale, porcelain
smooth skin and flashing red eyes.

She pushes a shelf, distracting Mayuzumi as he shouts a
balancing spell but even with her increased speed she’s not fast enough to
escape. “Seal bind!” he roars and the door to the shop becomes a solid rock.
Hissing she turns quickly only to be met with Mayuzumi’s hand on her wrist. She
breaks his hold, but he grabs her throat and holds up a large crucifix, holding
her in place with her back against the rock.

“Release me this instant, before I drain you dry, witch,”
she spats eyes flashing a bright red.

“You’re in no position to give orders, thief,” Mayuzumi
returns evenly, his face impassive as ever. Leaning forward, he reaches into her
other pocket, extracting a small vial. “I should have guessed,” he sighs, “a
vampire stealing a day break spell.” He tut tuts at her. “No wonder you have to
resort to theft, this isn’t cheap.” Smoothly he reaches behind him and hands
the item off to his familiar who returns it to its rightful spot. “Guess I’ll
have to consider getting a safe for the pricier merchandise we have in here, never
been a problem before you,” he goes on, eyes inscrutable.  

When he turns, she lunges forward only to find herself held
fast in place; a damn binding spell! “Let me go,” she shouts, fists clenched, “you
got back what you wanted!”

“You know that only works if administered in a specific way,
right?” The question catches her off guard for a moment but she’s back to
scowling quickly.

“I would have figured it out, like it’s that difficult to
cast a spell!”

“What a stupid little vampire you are,” he chides, shaking
his head. “I should have let you take it and kill yourself, it would have been
less trouble than dealing with you.”

“Then give it to me and I’ll be on my way,” she shrugs.

“Oh no, I would have given you props if you managed to get
out of here without him,” he nods to his familiar, “catching you but he’s the
best guard cat this side of the river. You made a stupid decision trying to
steal from me, little bat.”

She swallows thickly, not liking his expression. He looks like
he’s lost feeling a long time ago and though she may be considered a member of
the walking dead, the lack of life in his eyes is unsettling. It’s possible she
may not get out of this alive. The rules in their world are different from the
humans surrounding them and death for a trespass such as this is not unheard
of.

“Wait,” she tries, dimming the light in her eyes, “maybe we
can reach an agreement?”

He smirks, grasping her chin roughly. “Oh? And what, pray
tell, could you possibly have to offer?”

“My nail,” she says quickly. Mayuzumi’s eyebrows rise
slightly. “I overheard as I walked in. You need the nail of a vampire to fulfill
another order, right? So, take one of mine as payment and give me the vile!”

“Tch, I’ll take one of yours as restitution for messing up
my shop,” he grumbles.

“Messing up…I didn’t do anything to your shop!” she shouts.

“Maybe not, but your intention to destroy property was there
nonetheless. Now, give me your hand,” he orders, grasping her wrist firmly. “Altrua,
get me some pliers.”

The familiar fulfills his orders quickly, slapping a pair of
pointed pliers into his master’s hands. “That’s all, Altrua, you can go now.”
He nods, snapping back into cat form and leaving through a window to prowl the
evening streets. For a moment there’s silence, then Mayuzumi recites a numbing
spell before pulling the nail from her hand. The sensation is not pleasant, and
she does bleed but he stems the flow quickly and bandages her with surprising
care. After the extraction, he releases her, the vampire rubbing her wrist
despite the little pain.

“Now get out of my shop and never show your face here again,”
Mayuzumi commands.

But this vampire is nothing if not persistent. “Witch,” she
says and he turns to look at her. When their eyes meet, hers are glowing bright
red, her irises encircled by white. Mayuzumi freezes in place, body rigid as
she stalks towards him. Her breath ghosts over the shell of his ear making him
shiver. “You were a fool to release me, witch, now not only am I going to take
that vile, I’m going to drain you dry.”

He swallows, willing his body to move but he can’t, not when
she has him so thoroughly hypnotized. The brush of her lips against his cheek
is unexpected as is the feel of the flat of her tongue against his throat
making him gasp. “Mmmmmm, I like the smell of fear on you,” she murmurs against
his skin. “Let’s see how you taste,” she goes on before breaking through the flesh
of his neck. Mayuzumi shudders when she can’t stop herself from running her
cold hands up the length of his sculpted arms to his firm shoulders. A
momentary lapse in concentration breaks her firm hold of him but he shocks the
hell out of her when instead of pushing her away, one hand latches to the back
of her head seemingly to hold her in place. The more she drinks, the more
strength she possesses so it’s a feeble attempt for power at best, but she isn’t
complaining if he isn’t.

Mayuzumi’s other hand reaches around her waist tugging their
bodies closer together. As she pulls away and meets his gaze she sees his eyes
are no longer empty. If anything, he looks as hungry as she feels.

“More,” he rasps and before she can react his mouth is on
hers, teeth tugging her bottom lip making her groan in spite of herself.

“You’re a new kind of freak,” she gasps when the hand
formerly holding her head delves down to grasp her breast.

“And you talk too much,” he complains, kissing her harshly.
She pushes against him but somehow, he holds fast and the massage of his tongue
against hers makes her weak in the knees. How long has it been since she last
fed and fucked? Too long, apparently, because she’s giving into him, allowing
him to control the situation instead of the other way around.

“Give yourself to me and I’ll let you have the potion,” he
growls against her throat, teeth nipping the cool flesh and her head falls back
at the feel of it.

“Deal,” she moans and he picks her up, carrying her up the
stairs to his dwelling.

In little time, their clothes are on the floor and Mayuzumi
is above her body on his bed. Her flesh is cold and he shivers against her but
his touch is like fire to her. Latching onto her breast, he sucks hard and she
arches into his body.

“Tell me your name,” he commands between kisses.

“_________,” she supplies, hand carding through his hair.

“Mine is Mayuzumi, make note of it, because you’re going to
be screaming it soon enough.”

“Big talk, let’s see if you can put your money where your
mouth is.” He descends, latching his mouth onto her clit and she screams out, “Mayuzumi!”

“That was quick,” he smirks before diving back into lap at
her nectar. He’s never tasted her kind before and finds it surprisingly fresh
considering she’s among the living dead. He plays her up higher and higher and just
before she crests he stops, earning a snarl and her pushing him onto his back
before she sinks onto his waiting cock.

Both of them groan loudly at the union and she leans down,
fangs descending to drink from him once more. Mayusumi grunts her name, tightening
his hold and thrusting up hard as she drinks her fill. The harder and longer
she bites him the firmer and more hurried his thrusts become until she’s sure
he should pass out from loss of blood or stamina or both.

As she draws away, her tongue laves up the trails of blood,
not missing a single drop. Mayuzumi turns them once more, holding her down by
the wrists and plunging into her with abandon. The force of his impacts brings
stars to the backs of her eyes and she cries his name over and over, writhing against
him but not really wanting him to stop.

“Again, do it again,” he orders releasing her and she
complies leaning up and biting just above his heart. “Fuck,” he hisses between
clenched teeth. He moves his mouth to her neck, latching his own teeth to her
flesh. They’re nowhere near as sharp as hers but he manages to leave a
momentary mark before it heals.

A few more thrusts has him coming deep in her body, the feel
of him filling her up warming her from the inside out for the first time in
centuries. He doesn’t pause though, reaching down to caressing her clit with
his fingers until she’s sobbing her own release upon which he collapses on top
of her.

After a moment’s silence, she mutters, “If you’ll kindly get
off, I’ll have my potion and be on my merry way.”

“Get off? I thought that’s what we just did,” he chides
rolling to his back. She scoffs but as she rises to leave his hand on her wrist
gives her pause. “What’s the rush? Daylight will be breaking soon and the
potion takes longer than that to take effect.” He pulls her down, wrapping his
arms around her. “Tomorrow night at dusk, we’ll do it together.”

She hums, “The potion, or sex?”

He nuzzles her neck, placing a kiss against her skin. “Both,”
he affirms before falling into a slumber.