You wipe the glass clean, revealing a hulking squid-like creature, it notices you and with a sudden movement, it breaks the capsule and uses its tentacles to capture you.
You fight it, using a heavy wrench, the creature hardens his body, adapting, evolving...
Now it has 4 arms, ignores your blows, grabs your arms and legs, and uses its jaws to rip off your clothes.

You feel a terrible pain in your ass, you scream when you notice that you are being filled with eggs, and you start to faint from the pain, but the creature segregates a drug that forces you to remain conscious. One after another the eggs keep coming, your belly hurts and you feel sick, drooling, and you think that you will throw up.

The creature is feeding on your pain, fear, and desperation... it starts to pump a thick cum inside your body to fertilize its eggs, and you struggle more... pleased the creature continues.

You faint because of the excruciating pain, and the deep violent invasion of your holes, your ass is torn apart by the cock of the creature and you are filled with eggs and cum like a human balloon.

Someone is coming... The creature escapes using a vent in the lab, and the last thing that you hear is "It's too late, he's broken, and soon the eggs will spawn, he will not survive"

THE END
Brutal egg-filling ending

Task: Immobilize your body and take off your clothes. Insert a big dildo in your ass as deep as possible, use abundant lube but it must be fast and painful. Insert 3 ice cubes in your ass and continue to fuck it for 1 minute. Insert 3 more ice cubes and add 500ml of lube mixed with 500ml of cold water. Hold your belly moaning in pain and pretend to faint on the floor. Expel a few ice cubes in the bathtub and cum. Expel the rest in the toilet.