Tentacle | Half-Life Wiki | FANDOM powered by Wikia
Commonly celebrated as the Tentacle, is a large foreigner creature which responds violently to sound and vibrations. It is first seen in a rocket propulsion test assembly but is also seen through the series on Xen and in other areas of the evil plateau investigating Facility. A large, green, divided stalk supports a "head", which ends in a sharp pointed, blade-like appendage and features what looks like an eye.
Tentacle Rape (Male) by Blank-Personality on DeviantArt
I laid on that point on the glacial floor, trying my best to delivery my breath. all small sound surprised my frazzled nerves; every little ghost sent jolts through my brain. The flimsy T-shirt that covered my torso provided almost no protection against the cold. My seemingly haphazard train of intellection though, was interrupted by a peculiar sound I in spades didn't imagine. I don't mean suchlike a dog's or anything, I meant like-minded a low, husky growl that I know just too well what it meant. At first, I idea it was a tongue, but point in time I accomplished that it was too big to be one.