Ness Monster; Tentacles

You had heard the legend of that remote village, that there was a creature in the depths of a lake, the area was clear when you arrived, if there was no monster you were going to bathe right there because, why not?

You wandered around the lake for a while, submerged yourself looking at the bottom of the lake that seemed to have no end, since nothing came out you decided to bathe there, you had shampoo and conditioner, you took off your clothes to bathe peacefully happy as could be when you saw something strange come out of the lake, a small tentacle, then it lengthened and more began to come out, staring at you without needing to have eyes

One of them grabbed you by the ankle and pulled you into the lake