Eka's Portal

Strictly speaking, this is less of a new idea but rather bringing something not often seen into view. In my browsing I've stumbled across a few pieces of vore that (in my mind at least) share similar elements but don't have something to tie them together. That is what I want to bring attention too.

For lack of a better term, I shall call this "Integration". Another name for it will likely be used by people. The best definition I can think of for it is "the act of one organism making another part of it's body without digestion or absorption, therefore keeping the victim alive". As for what I am prattling on about, these are the best examples I could find.

https://aryion.com/g4/view/301008
https://e-hentai.org/g/1062420/a0a65a701b/ pages 44-46 according to the index
https://e-hentai.org/g/924229/1d22017770/ pages 25-28 according to the index

Not sure if anyone would even be interested in this, but I thought it was worth pointing out.

I understand what you're saying, but I would go by the biological term in nature, which is symbiosis, specifically endosymbiosis where one creature lives inside another long-term to mutual benefit. Though, I can't find an example where a long-term trapped creature would not necessarily receive much benefit, only the opposite where one creature is considered parasitic, but since vore/unbirth/transformations are a special case... I would still call it an endosymbiotic relationship between the two (or more) creatures, regardless of who benefits from it.

Nitro_Titan draws a lot of artwork that fits this theme, and I've seen a few other works around here that do as well.

Not exactly new, but I do appreciate that Kancolle comic. Always fun to link those in crowded TS lobbys.

makes me think of these-
not sure they fully count, there's some digestion/absorption, but definitely related. not so pretty, and yes, old
...but still gold.

Male angler fish...
Tongue-eating bug...