SCP-666½-J is a crab-stuffed mushroom entrée produced by the internal Foundation catering service Containment Cuisine for the 45th annual Site-19 Foundation Formal. Roughly 42% of the 1,500 attendees consumed SCP-666½-J and were subsequently affected by its anomalous properties. SCP-666½-J's effects started to become apparent approximately one hour after the conclusion of the main course, at which time event goers began to complain of slight abdominal pain.
By the second hour, many attendees were complaining of significant digestive distress and all restrooms in the immediate vicinity were filled to capacity with extended queues. By the third hour, medical, investigative, and plumbing personnel were being flown in from surrounding sites to aid in relief efforts.
Those who have consumed SCP-666½-J say that it has an odd, salty tinge to it, likely caused by an experimental salt substitute used in its creation. It has been theorized that this substance is the root cause of SCP-666½-J's anomalous properties, although food poisoning as a result of poor hygiene amongst culinary personnel has also been considered. All staff members affiliated with Containment Cuisine have been put into custody for interrogation purposes as well as the individuals' own wellbeing.
When consumed by a human subject, SCP-666½-J triggers five stages of localized K-Class scenarios within the subject's digestive system.
In its initial stage, SCP-666½-J causes a brief period of mild nausea followed by a sudden and urgent need to relieve oneself. However, the instant before the crucial moment of blessed release, SCP-666½-J triggers a DK-Class Dominance shift, seizing control over the subject's nether regions and causing a massive shutdown of all the subject's bodily exits. The deep, carnal desire for release increases to the point that it becomes downright crippling. Subjects often experience shortness of breath, extreme jaw pain from the clenching of teeth, and mild bruising on hands from putting the rim of the toilet bowl in a death grip.
After 15-20 minutes of the subject's intestines experiencing a level of containment rivaling that of Scp-106 (and involving substantially more screaming), the subject will experience a brief RK-Class Rapture Scenario, feeling a relaxation of the lower muscles, a wave of elation, and a fleeting hope that the worst has passed.
Following this, the gates of Hell open up within the subject's intestines as Satan himself violates the subject's anal canal with a pickaxe. A sudden SK-Class Scorched Earth Scenario completely razes the interior lining of the afflicted's digestive tract as unholy murderflame rages throughout in a demonic vortex at a temperature of roughly HOLY-CRAP-ON-A-CUPCAKE degrees Kelvin. Every happy memory, every recollection of peace, joy, or anything other than sheer teeth-shattering agony is volcanically obliterated in a gastrointestinal supernova of biblical proportions. Subjects may experience blackouts or periods of lost time during this phase, their state of being reduced to a tear-blurred haze of torrential sweat, agonized wails, and desperate gasps for air.
This continues for the next two to three hours. It is common for subjects to briefly hallucinate during this stage, creating comforting mental scenarios in which they are violently murdered by various Keter-Class SCP entities.
Any last vestiges of hope are crushed into tiny nubbins as subjects undergo a CK-Class Total Containment Failure, finally expelling the contents of their bowels in a magnificent riptide that could best be compared to a single, large leak in the Hoover Dam: an unfathomably vast expanse of liquid ejected at a rate fast enough to be upsetting, but not fast enough to be merciful. Subjects have described the experience as the digestive equivalent of one's life flashing before their eyes, with every meal eaten during an individual's lifetime excruciatingly funneled out in reverse chronological order.
The downright baffling amounts of waste produced by the afflicted has led researchers to conclude that subjects' intestinal tracts are imbued with extradimensional or ectoentropic properties during this time. Ejected waste does not resemble good, wholesome fecal matter in the slightest. Rather, it is a roastawful terrorslush that is probably corrosive and almost definitely radioactive. The expulsion stage is usually fairly brief, but an anomalous temporal field created by SCP-666½-J causes subjects to perceive the experience as lasting roughly six lifetimes.
As the subject's ability to endure the emotional and physical trauma of the end-of-days inferno raging within their tenderest parts inevitably fails, SCP-666½-J will enter its final stage: a UK-Class Universal Collapse scenario, in which the subject experiences one final crescendo of gastric ragnarok followed by a blessed, merciful state of unconsciousness. Subjects will awaken one to two hours later with full memory of their experience; however, a number of afflicted individuals have reported finding themselves moved from one location to another during the period of time between passing out and regaining consciousness. One researcher testified to having found himself in a nearby field, clean and fully dressed, and laying atop a pile of 1986 Time magazines with no memory of how he arrived there.
Subjects who undergo SCP-666½-J's effects often bear psychological trauma from event as well as residual intestinal discomfort for the following fortnight.
Investigations are ongoing. Group of Interest involvement is being considered.
Headcanon:
This Scp was tested on all SCPs that can consume food.
They didn't take too well to it though. Cain even experienced the sensation of dying when it was consumed.

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ФанфикI really love the SCP foundation and I wanted to show you guys /gals / non-binary pals what I think. I do not own any pictures and videos shown, nor to I own any SCP. I don't know why some of these came to mind.