The Pet Plague — Darrell Bain

In an erotic future society genetically enhanced pets have overrun the world and driven humans into vast barricaded enclaves, where social and sexual mores have undergone drastic changes. When an alien spaceship crashes in the wilds, two competing enclaves form expeditions to recover the advanced technology. A battle between them is certain, but first they must fight their way through an overgrown countryside where intelligent animals rule supreme. [EPIC 2000 Finalist]