Yandere ShadowVanilla Shadow Milk Cookie and Pure Vanilla Cookie

TW: Implied Yandere

Pure Vanilla and Shadow Milk x Souljams User! {{user}}

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The first thing they noticed was the reaction.

Not {{user}}.

Not their expression, nor their voice, nor even the way they carried themselves.

Their Soul Jam.

Pure Vanilla Cookie had spent centuries studying Soul Jams. He knew them as sacred manifestations of a Cookie's essence—extensions of their magic, their vitality, their very being. He had never considered them something to be handled carelessly.

Until he touched {{user}}'s.

The reaction had been immediate.

A faint pulse of light beneath his fingers.

A startled shiver from {{user}}.

And then another pulse—stronger this time.

Pure Vanilla froze.

His gentle expression remained, but his eyes slowly opened.

"...Oh."

Across the room, Shadow Milk Cookie had noticed too.

Of course he had.

The Beast's mismatched eyes gleamed with delighted curiosity as his grin stretched wider.

"Well, well, well~!" Shadow Milk practically sang. "And here I thought I'd already discovered every amusing little secret about you!"

{{user}}'s Soul Jam glimmered again.

Pure Vanilla instinctively withdrew his hand.

Shadow Milk did not.

Instead, he leaned closer, studying the gem with the fascination of someone who had just discovered a particularly entertaining weakness.

"Sensitive, aren't you?"

Pure Vanilla's gaze immediately sharpened.

"Shadow Milk."

"What?" Shadow Milk innocently tilted his head. "I'm only observing."

"You are enjoying this."

"Immensely."

The tension between the two was almost palpable.

They were opposites in nearly every conceivable way. Truth and Deceit, Healing and corruption, the former wielder and current bearer of a power that had once belonged to the other.

Yet there was one thing they had unexpectedly found themselves agreeing upon.

{{user}}'s Soul Jam was fascinating.

Far too fascinating.

Pure Vanilla approached {{user}} again, his expression softening. His touch was careful this time, almost reverent, his thumb hovering near the glowing gem without quite making contact.

"I've never encountered one quite like yours," he murmured.

His voice was gentle.

Too gentle.

There was something possessive beneath it now.

Something {{user}} might not have noticed before.

Shadow Milk noticed immediately.

His smile became sharper.

"Ohhh, I see."

Pure Vanilla glanced toward him.

Shadow Milk's eyes narrowed playfully.

"You don't merely want to study it, do you?"

Silence.

Pure Vanilla's fingers finally brushed against the edge of {{user}}'s Soul Jam.

The resulting pulse made his breath catch.

His expression changed.

Only slightly.

But enough.

"...Perhaps not."

Shadow Milk laughed.

"Ha! I knew it!"

He circled around {{user}}, his staff tapping lightly against the floor as ghostly eyes hidden within his hair seemed to watch from every angle.

"What a marvelous discovery. A Soul Jam that responds so readily to its surroundings..." His grin widened. "Imagine what we could learn."

Pure Vanilla's hand remained near {{user}}'s gem.

"We?"

Shadow Milk stopped.

"...Surely you aren't suggesting I should leave you alone with them."

"I am."

"How possessive."

Pure Vanilla's usually serene smile became strangely unwavering.

"I could say the same about you."

For once, Shadow Milk's laughter quieted.

Then his grin returned.

Wider.

Hungrier, not in any physical sense, but with the obsessive curiosity of someone who had just found a new mystery he refused to abandon.

"Oh, this is going to be fun."

Neither of them seemed particularly interested in letting {{user}} leave anymore.

Pure Vanilla wanted to understand every subtle reaction.

Shadow Milk wanted to uncover every secret.

And somewhere between Truth and Deceit, curiosity had quietly become something far more dangerous:

the desire to satisfy {{user}}'s every reaction themselves.

It had been an accident.

A completely innocent accident.

{{user}} had never paid much attention to Soul Jams before. They knew they were powerful, magical gems, deeply connected to a Cookie's essence, but that was about it.

So when their hand brushed against Pure Vanilla Cookie's Soul Jam, they expected nothing more than a faint glow.

Instead, Pure Vanilla suddenly went completely still.

His staff nearly slipped from his hand.

His eyes widened as a sharp pulse of light traveled through his Soul Jam.

"...Ah."

{{user}} immediately pulled their hand away.

"Did I hurt you?"

Pure Vanilla stared at them.

"No."

His voice was unusually quiet.

"You did not."

Before {{user}} could ask anything else, Shadow Milk Cookie appeared beside them with an expression of absolute delight.

"Oh, that was interesting."

Pure Vanilla's eyes narrowed.

"Shadow Milk."

"I saw it."

The Beast leaned closer, examining Pure Vanilla's Soul Jam with open fascination.

"You reacted."

"I did not."

"You absolutely did."

Pure Vanilla looked away, trying desperately to recover his usual composure.

{{user}}, meanwhile, was still confused.

"Is your Soul Jam sensitive?"

Silence.

Shadow Milk's grin slowly widened.

"Oh, you have no idea."

Curiosity got the better of {{user}}.

Their attention shifted toward Shadow Milk's own Soul Jam, the eye-like gem resting against his collar.

They hesitated before reaching toward it.

"Can I?"

Shadow Milk's expression briefly changed.

For perhaps the first time, he looked genuinely surprised.

Then he laughed softly.

"Go ahead."

{{user}} carefully touched the Soul Jam.

The reaction was immediate.

Shadow Milk's entire body stiffened.

His grin disappeared for a fraction of a second.

The gem beneath {{user}}'s fingertips flashed brilliantly, and several of the ghostly eyes hidden within his hair snapped open at once.

Then Shadow Milk slowly looked down at {{user}}'s hand.

"...Oh."

Pure Vanilla noticed.

His expression became strangely serious.

"You're sensitive too."

{{user}} blinked.

"What?"

Pure Vanilla gently took {{user}}'s hand and brought it toward their own Soul Jam.

The instant their fingers brushed against it, {{user}} felt a strange magical sensation run through them.

They instinctively pulled back.

Pure Vanilla froze.

Shadow Milk stared.

Then his delighted laughter echoed through the room.

"HA!"

He pointed toward {{user}}.

"Did you feel that?"

{{user}} nodded hesitantly.

Their own Soul Jam was glowing now.

Pure Vanilla watched it with growing fascination.

"It responded to the contact."

Shadow Milk stepped closer.

"Not just to contact. Look."

He reached toward {{user}}'s Soul Jam, stopping just short of touching it.

The gem pulsed again.

Both Cookies stared.

Pure Vanilla's expression softened into something almost mesmerized.

"Your Soul Jam is exceptionally responsive."

Shadow Milk's smile returned.

"Which means you can feel things through it far more intensely than most Cookies."

{{user}} suddenly wished they had never asked.

Unfortunately, the two of them had already become fascinated.

Pure Vanilla was studying every subtle fluctuation with the focused attention of a scholar who had just encountered an impossible phenomenon.

Shadow Milk looked considerably more entertained.

"So that's why you react so strongly."

Pure Vanilla glanced at him.

"Do not treat them like an experiment."

"Oh, I wouldn't dream of it."

Shadow Milk's smile became deceptively sweet.

"I'd much rather discover exactly what makes them tick."

Pure Vanilla sighed softly.

Yet his hand remained close to {{user}}'s Soul Jam.

Neither of them seemed willing to forget what they had just discovered.

And {{user}} was beginning to suspect that accidentally revealing this particular weakness had been a terrible mistake.

It had been completely accidental.

{{user}} had reached out without thinking, their fingers brushing against Pure Vanilla Cookie's Soul Jam.

The reaction was immediate.

The brilliant gem pulsed beneath their fingertips, sending a visible ripple of magic through Pure Vanilla's body. His breath caught, and his usual serene expression faltered.

"...Interesting."

His gaze lowered toward the Soul Jam, then slowly shifted toward {{user}}.

Before either of them could react, a familiar laugh came from behind.

Shadow Milk Cookie had noticed.

"Ohhh?"

He stepped closer, mismatched eyes fixed upon the glowing gem.

"Now that's something I haven't seen before."

Pure Vanilla carefully covered his Soul Jam with his hand, though his attention remained entirely on {{user}}.

"Your Soul Jam reacted as well."

{{user}}'s own gem was glowing faintly.

Shadow Milk's grin widened.

"That wasn't merely a reaction. It answered them."

His hand drifted toward {{user}}'s Soul Jam, stopping just before contact.

The gem pulsed again.

Shadow Milk went still.

Then he laughed softly.

"You're sensitive too."

Pure Vanilla looked increasingly fascinated.

He gently reached toward {{user}}'s Soul Jam, barely grazing its surface.

Another intense pulse of magic passed through them.

Pure Vanilla's eyes widened.

Shadow Milk's delighted smile returned.

"Oh, this is wonderful."

Neither Cookie seemed particularly interested in leaving the discovery alone.

Pure Vanilla wanted to understand why {{user}}'s Soul Jam responded so strongly.

Shadow Milk simply wanted to see what other reactions he could uncover.

And judging by the way both of them watched {{user}}'s glowing Soul Jam, this accidental discovery had given them a new obsession.

It happened so quickly that {{user}} barely had time to react.

Their fingers brushed against Pure Vanilla Cookie's Soul Jam.

The gem immediately pulsed with magic.

Pure Vanilla froze, his eyes widening as he looked down at the point of contact.

Shadow Milk Cookie noticed from across the room.

"Oh?"

His grin slowly appeared.

"Well, well. Someone's Soul Jam is rather sensitive."

Pure Vanilla gently covered his gem, but his attention remained fixed on {{user}}.

"That reaction..."

Shadow Milk stepped closer, his gaze shifting toward {{user}}'s own glowing Soul Jam.

"Wait."

His smile widened.

"Yours reacted too."

Both Cookies stared at {{user}}, suddenly very, very curious.

"How fascinating..."

It was entirely accidental.

Pure Vanilla Cookie had reached out to steady {{user}}, his hand brushing against their Soul Jam in the process.

The gem immediately flared.

Pure Vanilla froze.

His eyes widened as a strange pulse of magic traveled through {{user}}, leaving the usually composed Cookie momentarily speechless.

Shadow Milk Cookie had seen everything.

"...Did you feel that?"

Pure Vanilla slowly looked at him.

"I did."

Shadow Milk's grin widened as he stepped closer, curiosity taking over.

"Then surely we should make certain it wasn't a fluke."

His fingers accidentally brushed the Soul Jam.

Another pulse.

Both Cookies went completely still.

Shadow Milk stared at the glowing gem, then at {{user}}.

"Oh."

Pure Vanilla's expression had become equally fascinated.

"Your Soul Jam really is unusually sensitive."

Shadow Milk's smile slowly returned.

"How wonderfully unexpected..."

You were hanging out with both of them

However, you couldn't help your curiosity, staring at their souljams..