First, I have talked to an actual expert in the field of human sexuality, and yes we do condition on anything that occurs simultaneously with any orgasm. You can try this for yourself by picking something you don’t mind accidentally fetishising.

Secondly, what pattern? Dogs (and TIL dolphins) hump random things; hyenas are (in human terms) femdom sadomasochists; the male antechinus gets horny once in their life, then has as much sex as possible before dying of exhaustion; female ferrets literally die if they don’t have sex; bonobos have sex pretty much as a way of saying “hello”, “sorry”, or as a social favour; and pandas famously don’t mate enough for their own survival.