>>81751851 (OP)>Why are they always so obsessed with smelling each other. Surely it can't smell that good?They have a gland there, anon. That's why they smell each other's ass. Because there's s gland that produces a substance that has a particular smell. They can mark territory or recognize each other by that smell.
Bunnies also have a similar gland, and it's secretions sometimes get clogged up into a ball that has to be removed. It has a very strong smell.
A dog's also may need to be drained sometimes.
So it's not the ass itself that they are smelling, but that particular gland's secretions.