Coherent

Collei drank like she had been waiting her whole life for permission.

The vial tipped. Her throat worked. The smile that followed was not sane and not shy — it was the look of a girl who had just been allowed back into her favorite fire. She set the empty clay on the floor with absurd care, then folded forward on the rug without being told, chest down, ass up, presenting herself while the tincture crawled through her.

(https://im.ge/i/QQXuyCa)
(artist: miyu)

“It is already—”
She shivered.
“Warm. Oh. It is already—”

Aether put a hand on the small of her back and did not rush the first stroke. Skepticism sat in his jaw. Three times had put her in a continuous climax on his cock in the jungle without him moving. Three times in a bungalow, after months of her cooking her own nerves, felt like a bet she was about to lose.

He took her from behind anyway.

The second he pushed in, Collei came apart.

Not language. Not a moan that belonged to a person. She flailed, fingers clawing the rug, and screamed something incoherent that might have been his name if you were generous. Her cunt clamped down so hard he had to grit his teeth and work through it, and she kept screaming, pitch jumping every time his hips met her ass.

(https://im.ge/i/QQXuApJ)
(artist: miyu)

“Collei.”
He did not stop. He did need to hear she was still in there. “Stay.”

“Here—”
The word punched out of her sideways.
“Here. I am— ah— I am here. Do not— do not stop the test—”

She was aware.

(https://im.ge/i/QQXubl6)
(artist:miyu)

That was the ugly miracle of it. Her eyes rolled white on the first real climax, the kind that ripped through her like the blanket she had described and then kept ripping. Her face went slack, mouth open, all the little muscles that made expressions simply quitting. Drool hit the rug. She did not black out. When he dragged her back onto his cock she made a broken, animal sound and pushed her hips into him, still offering, still in the experiment.

Aether stopped being gentle about the hypothesis.

He hooked her hips and broke her down in pieces. Deep, grinding strokes that kissed her cervix and stayed there until she sobbed. Short, mean ones that made her thighs kick.

(https://im.ge/i/QQXuE2y)
(artist: Depressart)
He reached under her and found her clit already so swollen it was almost cruel to touch; one rub and she locked up again, eyes white, face empty, cunt milking him in helpless pulses while a noise came out of her that did not have a species.

“Coherent,”
he reminded her, breathless himself now.
“That was the deal.”

“Cock—”
Collei gasped, and laughed, and screamed, all in the same breath.
“Still. Your cock. I can— I can still feel where you are. Not a blanket. Aimed. Aimed. Please more. Please fill— please prove—”

He filled her.

The first load packed her cunt until it ran out around his shaft in thick, wasted pulses. She came on it with her arms giving out, cheek on the floor, still trying to say data and only managing a moan. He did not pull out. He fucked the creampie into her until there was a second load, then a third, her belly faintly tight with it, her voice gone to wreckage. Each time her eyes went white. Each time the motor control dropped out of her face. Each time she clawed her way back far enough to push her ass up and take the next stroke like the test was still running.

When her pussy could not hold another thought, he pulled out, slick and filthy, and pressed the head of himself to her ass.

(https://im.ge/i/QQXu3Kz)
(artist: miyu)

Collei made a sound he had not heard from a person.

He worked into the tighter heat slow enough not to injure her and fast enough not to be kind. The tincture turned that into a catastrophe. She imitated things that did not live in Sumeru — a high, cracked yowl; a low rolling groan that belonged in a barn; a stuttering chirp when he bottomed out and her body tried to decide if it was coming or dying. Candace’s hand, which had been idly considering the empty vial, froze.

“I was going to ask for a drop,”
Candace said, very carefully.

Dehya did not look away from the girl getting plowed into the rug.

“No, you won’t. She trained for this and she still looks like her soul is trying to leave through her teeth. You take a sip of that and Nilou will be carrying you home in a basket.”

Candace watched Collei’s face slacken again, white-eyed, drooling, still rocking back onto Aether’s cock with what coordination she had left, and abandoned the idea without another word.

(https://im.ge/i/QQXux6S)
(artist: miyu)
The guardian’s curiosity died on the sound Collei made when Aether started using her ass the way he had used her cunt: claiming, repeated, packing her until the overflow ran down over the mess already dripping from her other hole.

“Still here,”
Collei slurred, somehow, between noises that were not words.
“Still— worship. After. I promised. I can— nngh— I can still think your name. Aether. Aether. Aether—”

He smiled despite himself, mean and fond, and kept breaking her.

The three-times multiplier did not make her a lose herself. It made every thrust a rewrite. He folded her down flatter, one hand in her hair, the other spreading her so he could watch himself disappear, and fucked the last of the laboratory out of her voice. She came until the climaxes stopped having edges. She leaked until the rug was a problem. She never quite left. That was the win she had wanted and the thing that made Candace look at Dehya with a new, wary respect for the advice.

When he finally spent in her ass and held there, Collei’s limbs were liquid and her mouth was still trying to shape gratitude around animal noise. Aware. Ruined. Full. The vial on the sill sat empty and innocent, and the girl on the floor was still whispering his name like it was the only coherent instrument she had left.

Aether stroked her spine once, checking the bet.

“You stayed awake”

Collei’s laugh was a wrecked little croak.

“Told you. Now— ” She tried to turn, failed, tried again, eyes not quite tracking, already aiming her mouth toward him with the last of the experiment’s pride.