Becoming Professor Moriarty's Probability

"A-Adler."

Amidst a room flooded with billowing pink smoke, Professor Moriarty – eyes overwhelmed with intense emotions of ambiguous origins – glanced at Adler from the corner of her eyes. Her dear assistant had pounced on her out of the blue, overwhelming her with uncanny strength.

"I have a favour to ask..."

"......?"

She whispered – her voice conveying uncharacteristic weakness and vulnerability – which caused Adler to tilt his head with a puzzled look.

"Could you be a bit gentler...?"

".......?"

"Yo-You're too rough..."

Upon hearing her words, a blank look momentarily took over Adler’s eyes as he stared at her, speechless. However, the momentary haze soon made way for a determined look as Adler declared in a loud voice.

"I don't want to."

"... Adler?"

"I'm going to fuck you like the horny mutt you are, Professor."

His firm declaration caused the professor, intimately wrapped in his manly clutches, to tremble; her gaze quivering with intense emotions.

"Do-Don’t act like a senseless beast…”

The professor placed her hand on Adler’s shoulder, gently trying to push him away, and muttered in a timid voice— a barely audible whisper.

"Are you ordering me now?"

"Wait, hold on a seco…”

Her timid attempt at resistance only served to anger Adler, causing him to glare down at her. Roughly, he grabbed both of her hands with one of his own and raised them up with a forceful yank; simultaneously, he moved his other hand downward, assaulting her.

- Squelch...

"... Ah~!?"

A sudden surge of electricity abruptly spasmed through her body, causing Jane Moriarty to involuntarily arch her back like a taut bow.

"Know your place, Professor..."

"He-Heeek..."

"I thought you were already aware of who’s the top and who’s the bottom in our relationship, right? Then, why are you constantly trying to overturn that balance…?”

"So-Sorry... I’m sorry..."

As Adler’s fingers penetrated through her folds and moved inside her in an undulating rhythm – moving inside in her most secretive spot, where she had denied all intrusions, even one that involved using the professor’s own hands – small spasms wracked in her lower abdomen, just above her quivering hole.

"I haven’t even touched your G-spot yet..."

"... What's a G-spot?"

"You really can be so naughty, Professor."

Amidst this situation, Adler whispered to the professor, conveying words that were nothing short of a mystery to the professor. However, they still worked somehow as Professor Moriarty finally gave up resistance, surrendering her body to him with a resigned look.

- Drip...

"Ah..."

Pulling his fingers out of her wiggling folds, he immediately showed his dripping wet hands to the professor, fully soaked in her love juices.

"How can you get so wet just from this alone?"

"I, I..."

"Professor."

Seeing none other than her own juices dripping scandalously from his hand, the professor was at a complete loss of words.

"... Being helplessly devoured whole by a fledgling student who has not even graduated yet, do you perhaps have a fondness for such immoral acts?”

"........"

"Hopeless pervert."

Voice permeating a dreadful chilliness, Adler condemned Professor Moriarty for her perverse fantasies. In the next moment, however, he began licking her juices off his hand, blatantly displaying his obscene act to her.

"It tastes good, Professor."

"St-Stop it..."

His blatantly honest remark echoed in the room, causing the professor to hang her head low and blush in immense shame.

"Let's not delay any further."

".......!?"

"... Take off your pants, and kneel on the floor."

Abruptly, a heavy something was placed on her head, causing her to lift her gaze with an utterly bewildered expression.

"Ah..."

And with that, silence descended in the room flooded in pink haze.

"This is... uh...? I mean... unexpected..."

"Just hurry up and strip already."

Seeing Adler’s cock placed on top of her head, for the very first time since her birth, Professor Moriarty's ever-sharp and astute brain ceased functioning.

"I'll be sure to slowly and thoroughly gobble you up."

- Kyung?…1

That did not matter though as her spasming pussy, dripping endlessly, had started making judgements for her instead.

.

.

.

.

.

"Adler..."

"........"

"A-Am I sitting properly…?”

Her body stiff as a board, Professor Moriarty awkwardly knelt on the ground after barely managing to take off her pants. After somehow following through on Adler’s command with some difficulty – courtesy of her stiffened state – she slowly raised her head and asked Adler in a meek voice.

- Swish...

"Uh."

Instead of a reply, Adler gently placed his manhood on her face.

"You look adorable, Professor."

"Adler..."

Adler gently stroked the professor’s cheek and murmured. However, the professor – supporting his cock with her face – wasn’t able to appreciate his compliment, only stuttering out a reply in a shaky voice.

"I-Isn’t your penis... um, isn’t it a bit too big...?"

"......."

"Th-This won’t fit in…”

"Professor."

Her words made Adler narrow his eyes and glare at the professor – still seated between his legs and supporting his massive phallus – before opening his mouth, his voice icy.

"Just shut the fuck up and do as I tell you."

"......."

"Alright now that we have things in order, why don't you start by kissing the glans?"

Feeling the throbbing pulses of the engorged dick on her face, the professor’s blush deepened and a hazy look washed over her as she received Adler’s command.

"Ah, I understand..."

"Don't be rough, do it gently, like giving your first kiss."

"........"

"And definitely don't use your teeth."

Lovingly stroking her hair, Adler gave her more detailed commands.

"Mmph."

Paying heed to Adler's cues, Professor Moriarty tightly closed her eyes and lightly nibbled at the tip of Adler’s impressive shaft.

"Chup..."

Soon after, she gingerly pressed her tongue against the small crack of the glans and swished her tongue around it, emulating the motions of a particularly aggressive and passionate kiss.

- Drip...

Rolling her tongue along Adler’s sensitive tip for a while, the professor slightly pulled back her head, separating herself from his shaft. A thin thread of saliva – mixed with sticky transparent fluid – stretched along the way, connected to her small lips.

- Chuu...

Riding on the waves of lust, she neatly gathered both hands on her knees, closed her eyes, and kissed the glans once again.

"... Am I doing it properly?”

"......."

"A-Adler?"

Fluttering her eyes open, slowly, she queried Adler before gazing up at him. Immediately, she was met with the sight of a tense Adler, observing her with silence, his mouth tightly shut.

- Swish...

Abruptly, he started stroking her hair once more, but this time he did not speak, only continuing the loving action.

"... Stop stroking me like that."

In a complete reversal of their usual roles, the professor, being petted by her assistant, lowered her eyes and muttered in a sullen voice.

"After kissing the penis, what should I do next?"

Resting his chin on his hand, Adler looked at the professor with a chilly gaze while speaking in a dangerously low voice.

"I thought that my smart and intelligent professor would have figured that out already."

"......."

"My mistake, I guess."

Hearing those words, hesitation covered Professor Moriarty’s face, unsure of what to do. Finally making up her mind after some time, she slowly opened her mouth under Adler’s judging gaze.

- Lick...

Pressing her tongue against his girthy member, she vigorously licked the shaft all over with her slithering tongue. Coming back to the tip after a round of intense slobbering, she started swallowing Adler’s member from the tip, slowly making her way down.

"Guh, urguhhh..."

"........."

“Kuluk, kuluk…”2

However, a complication soon arose. Perhaps due to the unnaturally large length of Adler’s manhood, by the time she had swallowed his length halfway, a cough mixed with retching noises leaked out of her mouth.

"... It was certainly an amazing endeavour."

In the next moment, a disappointed voice reached her ears, leaking out of Adler’s mouth from above her.

"But alas…"

Professor Moriarty flinched after hearing that voice filled with disapproval. Soon, however, determination blazed in her countenance and she took a deep breath, preparing herself.

"....... !!!"

Eventually, she bent her head down with all her strength and swallowed her beloved assistant's colossal member down her throat— from the tip to the very base of his length.

"Argh, arghhh..."

"... Uh."

Her oesophagus, invaded by Adler's thick phallus, immediately started to convulse in rejection.

"W-Wait a moment..."

"Hnnnngh..."

Blood rushed into Adler’s cock in droves at her abrupt act, resulting in Adler trying to push her head away. However, due to the sudden suffocation and gagging, the professor’s head had gotten so stiff that he was unable to free himself.

- Blurp, splurt...

As a result, before she could fully pull her head away, Adler's semen forcefully started to spray out from his tip.

"Uh..."

Even after filling her mouth halfway through with his thick semen, his throbbing dick continued spraying fat ropes of thick semen over her face, marring her with its sticky texture.

"........"

And with the ending of this erotic act, a brief silence passed over the duo.

"What are you doing?"

As the professor – momentarily dazed by the amount of semen that had both filled her mouth and covered her whole face – gathered her hands to spit out the thick semen pooled inside her mouth, Adler issued a cold command to her.

"Don't spit it out, swallow it."

"........"

"If you don't to, then just keep it in your mouth. You are not allowed to spit it."

At his words, she silently looked up at her assistant, then closed her eyes and started swallowing the cum still present in her mouth.

"Collect everything that's sprayed on your face and lick it off."

- Lick...

"Right, well done."

As she obediently cleaned up all the semen sprayed on her face, and mouth, Adler gently stroked the professor’s stomach with his outstretched foot.

- Gulp, gulp...?

"But, you need to be punished."

His sudden act made her dripping cunt quiver in anticipation, more violent than it had ever been, and then, he whispered in his ears with a stern voice.

"Who told you to keep swallowing my penis until I came in your mouth?"

"Th-That..."

"My penis has wilted now."

However, when Professor Moriarty checked his manhood, she saw no change in its size or girth.

"But, it seems even bigger than before...?"

"Don't talk nonsense. How are you going to take responsibility?"

Even though there was no change, she was currently being submissive to Adler. Due to that, she was unable to contradict Adler, the dominant one in the hierarchy.

"You're smart, Professor. So you must know where semen is produced, right?"

Using her brilliant mind, now fully functioning once more, she was immediately able to interpret Adler’s command. A searing red blush crept up her face, thinking about what Adler wanted her to do, and she immediately placed her head back between his legs.

"Haeup..."

"Indeed, you are as intelligent as I expected you to be."

Carefully, she gobbled up his balls into her mouth, slathering them with her saliva and tongue. Adler’s lips curled up after seeing her obediently listening to his command and he immediately stroked her cheek with affection.

- Lick, lick...

Professor Moriarty gazed up at Adler with upturned eyes and immediately put more effort into licking his balls with her slithering soft tongue.

- Gulp, gulp...

The future Queen of Crime— who would not only rule over London but also the underworld of the entirety of Britain, someone who had killed uncountable people with her own hands.

She was the final boss of this world, a formidable force who could erase someone like him from existence with just a flick of her finger.

Such an untouchable being had now humbly knelt before him, swallowed his cum like an obedient slave, and even licked and tended to his balls just to keep his cock erect.

The immense sense of conquest and immorality brought about by this fact was enough to awaken the beastly instincts hidden within Adler until now.

"That's enough."

"... I want to lick more."

"I. Said. That's enough! Get up right now."

"... Eek."

Paying no heed to her wants, Adler forcefully pulled Professor Moriarty up on her feet. The perverted professor had taken a liking to licking his balls and was thus sullen to be pulled away from his member.

"Lie down on the bed."

"......"

"No, not like that."

She immediately followed his command and lied down on the bed. However, she could not help but tilt her head when she sensed the frustration in Adler’s voice.

"How then…?"

"Like a dog."

Her mouth hung open in shock after hearing the vulgar command Adler just spouted.

"Ah..."

"Seems fitting for your first position, since you are not unlike a horny mutt in heat, Professor."

A few seconds later, Professor Moriarty quietly placed her hands on the bed and turned her body.

.

.

.

.

.

"Ah, Adler."

The position Adler proposed was not something Professor Jane Moriarty had ever enacted in her life. Due to that, she was able to only assume the pose Adler desired after several trials and errors.

"... I-Is this how it should be done?"

Sticky love juices incessantly poured out of her garden, staining the sheets. And the typically dominant professor, now displaying a submissive posture, exuded an obscene depravity that stirred up feelings of immorality and conquest.

"You're truly as perverted as they come. All you’ve done is sucked my penis and you're already leaking this much."

"Adler?"

Observing her posture with shuddering relish for a while, Adler finally lowered his head down to her pussy lips.

"Even tidied up your hair down there..."

Narrowing his eyes, he murmured obscene words in a low, deep voice.

"Slurp..."

"Heugh?"

Abruptly, he extended his tongue and gave her dripping lower lips a long slobbering lick. Immediately, Professor Moriarty released a throaty moan, whole body shuddering with depraved arousal.

"A-Ah~ Adler... What are you doing…!?"

"Stay still."

"........!!"

Thrusting his head toward her inviting pussy, Adler thrust his tongue deep inside her squirming, wet folds.

"Ahh~..."

In such a vulnerable position, lying face down weakly, the professor could only bite her fingers to suppress her progressively rising moans.

"... Huff."

After some time,

- Thud...

"As I said before, Professor, you taste delicious..."

Pulling his head back, Adler started lapping up her flooding cunt, savouring her exquisite taste. Then he rhythmically tapped on her quivering quim, relishing at the sight.

"Don't, don't tap that spot..."

"Huh? I’m not tapping anything, though?"

Confused by his statement, the professor cast a puzzled look toward him and queried.

"Then... what is that thing that keeps flicking me on that place?"

"It's my penis."

His shameful reply made her speechless, and she bowed her head in shame.

- Creak...

"Uh!?"

At that moment, Adler's bulbous tip slightly entered her leaking pussy..

"........."

Simultaneously, a thick silence enveloped the duo.

"Don't you have anything to say?"

With a look tainted by depravity, Adler asked as he felt the presence of a thin membrane at the end of his tip. Meanwhile, the professor buried her face further into the sheets, her face practically tomato red, and whispered in a faint voice.

"Thrust it in..."

"Again."

"Th-Thrust it in..."

But with no response from Adler, the professor had no choice but to slowly turn her head to gauge his reaction.

"Uuuu..."

A whimper, not unlike a lost puppy, leaked out of her lips while her eyes were filled with both shame and depraved lust. Adler stroked her smooth and plump derriere, observing all her reactions, and finally replied with a malicious grin.

"As you wish."

"...... Haaah~!?"

And simultaneously, Adler's dick forcefully penetrated through her hymen, thus sullying the virginity of Britain's most dangerous and evil woman.

1. It's a sort of cute noise you see in anime. Don't exactly have a one-to-one English for it other than **cute noises** so just make do with this.2. These are coughing noises, should be easy to get but still for those who may have doubts.