Unsanitarium (18+)

[S] An actual tentacle monster this time

Since taking up a new job at a company that specialized in genetic engineering and biomass containment, for when whatever monstrosities you created became hostile, you've begun to notice a recurring pattern that later led to your eventual demise with the lab's newest guinea pig! A creature, red, covered in mouths full of disproportionately placed teeth, and warty, writhing tentacles had escaped and killed almost everyone in the facility. You were locked in with it after the power grid shut down to keep it from leaving the building, hearing the screams and wails of your coworkers as they attempted to escape, and their bodies being smashed against doors and torn apart with the awful splash of blood following soon after. Hidden under a table in a lab full of broken glass and equipment was you, one of the lucky people who survived to tell the disastrous tale of your encounter with the monster.

Before the speaker on the intercom about the situation was surely decapitated, it was advised that this creature grew ten sizes bigger for every person it ate. If there was any way to stop it it would have to be by freezing it solid, as it was very intolerant to cold..

As if anyone was listening busy running for their life, or laying dead and in pieces on the floor. You noticed a conveniently placed nitrogen tank in the corner and thought maybe, you could set a trap. You had no time to formulate whether or not it would work as the monster quickly came through the vent in the ceiling. It landed on a frozen floor full of tripwires and was spoofed with wintry white smoke that seared its flesh. It shrieked and whipped its arms around, some breaking because they were frozen in ice, flinging tables and the like around the room and unfortunately in front of the door. No other way out, you seeked the alternative just a few feet away, a glass cage.

The gas eventually ran out and the creature was a shade of hypothermic purple. It wasn't happy, and made a beeline for the cage to get to you. The glass was brittle from the smoke, and a few of its arms were able to punch through. Before they could grab you, you crawled up into the sanitation unit that was above you and pulled yourself along as it came in behind you. You both fell into the hallway, screaming as you pushed through bodies to get further away, but the tentacles wrapped around you tightly and you were pulled into another morbidly vacant room.

The monster then covered your mouth.

"Shhhh.."

And then stripped you of your clothes. You had no idea what it was plotting to do, but prayed it would be over fast.

"Please don't.." you begged.

It disregarded your plea and had you embrace the air as it took advantage of your sensitive parts. It wasn't gentle by any means, filling your cunt and forcing its way into your womb. It hurt more than it felt good but you clenched, moaned, and arched your back until you couldn't take it anymore, and orgasmed several times, going limp as you shuddered in mortified pleasure.

But it wasn't done with you, not yet.

The creature pulled you into its wild maw, where six different tongues, all covered in ridges and spines, took the place of its arms. The viscous combo of blood and saliva acted as your lube, but aside it's coppery odor, it didn't help to ease the poking and prodding of the spines, barbed themselves with venomous hooked tips that fucked you until you bled. It was meal to the monster and when you came your insides burned like nothing you'd ever felt. You writhed in pain and was left paralyzed, though temporarily, by the venom.

Finally satisfied, it spat you out and retracted its pig stickers from your orifice, dragging thick trails of bodily fluid oozing from both of you. Where it went, you didn't know, but based on the sound of racketing metal and muffled thumping, it had retreated back into the vents to continue killing. Why it didn't kill you, you'd find out in a probable sequel..

The end.