I tried a couple of tentacle loras around and no one could quite do the breast-grabbing thingy, where the tentacle is around the breasts. So i got some reference images and made one myself.
STR:1
Model used: Hassaku
Epoch 7, Steps 987

Trained on NAI
Tags:tentacle_breastgrab, tentacles, grabbing, arms up, <color> tentacles

I tagged some colored tentacles so you can use like 'pink tentacles' or 'grey tentacles' and so on. I have renamed the model before uploading, so the examples were made using the default epoch name.

There are some example images, currently flagged for review :D