Not really

Before you know it another pair of the creature's many tentacles have grabbed your feet and spread your legs almost as wide apart as they were when you were doing your involuntary splits just moments ago. You prepare for what you know must be coming next - the forceful invasion of all your orifices by tentacles too numerous and enormous to fit you all at once.

It does not happen, and eventually you open one of your tightly shut eyes to look around. Your white socks, panties and bra are all shining bright under the black light of the monster's strange, bubbling surface, almost acting as beacons for the tentacles to find its targets. It has already sucked one of your socks off with a newly formed mouth and seems to be chewing on it, dissolving it within its murky depths. Your other sock, your bra and your panties all follow soon afterwards, ripped off by strong tentacles and thrown into gaping maws.

Confused but curious you wonder if this tentacle monster has a thing for used panties. It wouldn't surprise you at all. While it finishes devouring your clothes you are left hanging for a minute or two, basking in its black light, your naked skin glowing not quite as luminously as your clothes had been. Eventually you figure it out.

The creature must be using its black light to find sources of phosphorescense, in order to digest certain chemicals that it finds delicious. Some laundering detergents contain phosphorous agents, and apparently so does your bath-salt. The residue of which is now covering your entire naked body, from head to toe.