A 20-something woman is impregnated by a tentacle monster.
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Water smacks your face like an epiphany. It's hot, and you let it soak your hair and skin. You want to hide in this shower until your fingers are prunes and maybe even just let yourself drown. You scrub your scalp with shampoo then rinse it out. Your hair falls in pieces over you face and you swipe them back.
The water stops. You freeze, both in temperature and movement. This is a relatively new building and the pipes should be working fine. You step out of the shower and reach for a towel when suddenly you hear "KAAAAAAAAIIIIIIIIII... GAAAAAAAAAAAAAAAARRA!"
You jump and slip on the wet tile floor, hitting your head on the toilet as you go down. You stay down for a while. You rub your head where you hit it and can feel a bump growing.
You hear a small noise coming from the shower. You snap your head over to see the shower drain being slowly shifted from its spot. It's difficult to make out what's moving it, since you don't have your contacts in, but it appears to be small and black. At first you think of a rat, but then you figure that a rat would've drowned. Some kind of monstrous spider? The thought scares you, but not as much as what you are about to experience.
The black smudge grows taller and progressively wider and it twists around to reveal a purple underside. It reminds you of Ursula from The Little Mermaid, except this thing is longer than you are. You think it will stop growing before it hit the ceiling, but instead it curves to meet the ceiling and keeps growing. Another, separate black thing starts to come forth from the drain. It's a different circumference than the first thing, a little wider. It grows slowly along the wall. Even more of these thing squeeze through the drain, too many for you to count. They're all blurred together, twisting around each other until they create cracks around the drain and cover the shortest wall of you bathroom and threaten to take over the rest of the room.
You are still sitting on the floor, stunned. Nothing else could twist and turn with this much deftness except a tentacle. You wonder for a little how the tentacles got in your pipes, but this thought is wiped out when the whole room starts to turn black. Tentacles are crawling across the floor toward you. You start to shake and hyperventilate. Only your hands stay strong, gripping the edge of the toilet behind you.
The tentacles stop around the perimeter of your body, but they still surround you so you can't move your bottom half without touching them. They've knotted themselves around the door and you can't think of any way to escape. That thought is interrupted by a mass the same glistening black as the tentacles pushes itself out of the drain. You hear it crack, but you don't care. You're in a much more serious predicament now.
Everything is deadly still for a few moments and you hold your breath. Your eyes are wide and your heart threatens to smash through your chest. You want to scream for the creature to do something, but then, it might do something.