I draw attention to Nick Nicholas’ answer to What is it called when you get aroused by watching people die? as my credentials for answering this.
Especially my line:
Is not knowing shit about Classical languages a prerequisite for sexologists?!
It is, and I’m not finding the bite fetish in Aggrawal’s exorbitantly misspelled listing of 500-odd paraphilias.
Dacnolagnophilia, “bite horny obsession” is somehow a word for lust murder. God knows why. Dacnomania shows up at least in Italian as obsessive biting. And if sexologists did know shit about Classical languages, the word for a fetish for biting would be dacnophilia.
A fetish for being bitten? Greek doesn’t quite do that with the one stem, but I would go sideways, and use dēctophilia, “love of biters”.
But neither dacnophilia not dectophilia seem to have been used by anyone. After all, not knowing shit about Classical languages is a prerequisite for sexologists…
EDIT: Alberto Yagos has it: Odaxelagnia – Wikipedia