Investigate the mysterious tome

As you touch the the black book, a sudden darkness envelops the whole place. The green glow creates a pentagram on the floor, and a huge dark-green slime oozes from it, the creature opens multiple yellow eyes.

Before you can move, vine-like tentacles wrap around your body forcing your legs to lift over your head until your body is contorted into a vulnerable and embarrassing posture.

The slime easily rips off your clothes revealing your helpless pussy, each desperate attempt to grab the tentacles is futile, and your hands slide over the slippery surface, and the inevitable happens, your pussy is penetrated by the creature, deep and hard. Your screams sound inside the library. The more you struggle, the harder it fuck you. You can watch how the thick tentacle enters and exit your pussy without mercy.

After almost an hour of hard fucking, you stop struggling, and you feel weak, the pentagram starts to glow again, and you and the slime and banished to another dimension.
In the pages of the black book, it's described how the slime continues to fuck you, your story will continue for many, many years, but you never returned to your world, this is...

THE END
Dimensional slime ending