When I came too, all I could here was moaning. Everything was slightly fuzzy, I was sitting up against something hard, rock. My hands and feet were stuck to the ground with heavy slime, some dried, blocking my mouth also. I was naked. We were deep underground, in a small cavern formed long ago by the volcanic activity. I could see entrances to many other caverns as well. Light was coming from an unknown source. It was cold and damp.

I could now see where the moaning was coming from. My boyfriend was in the corner of the cavern we shared, secreted by the monster’s slime to the ceiling. He was facing the ground, moaning pitifully as a long tentacle was working his cock. The monster was hidden nearby. A small dip in the ground was full of white. It had been working him for some time.

He cried suddenly and jerked, more white splashing below. His sack looked like it was inflating. The creatures were still inside him, accelerating semen production. The tentacle masturbating him stopped and let go, letting his penis dangle. He looked on the verge of sleep. The large puddle of semen rose slightly, revealing a tentacle which had been catching all my man’s seed.

I struggled and broke out of the slime. As I started to run, tentacles tripped me up. I hit the ground hard. several secured my arms behind me, one leashing my neck. I felt hot breath on my ass.
It was in the cavern behind me.
Its thick member pushed into my ass, the tentacle around my throat squeezing, stifling every cry I made.