You wake up to a wonderful smell filling your doggy nose, as you look up to see a Rottweiler, like you. He looks at you lustfully, but also like he's very nervous. He's shaking a bit, but he's got a nice long doggy dick out of its sheath, hard as can be. It starts dripping with pre, and the scent drives your dumb dog brain wild. You begin to feel extremely horny, and your tailhole begins twitching, begging to be filled. You pant happily and get up, your own doggy dick getting hard. The other dog looks uncomfortable and starts to back away, despite his obvious arousal. You then turn around and present your tailhole to the male, your dumb doggy brain excited that your ass will be filled with 8" of dog dick. The other dog looks scared, but starts approaching your ass. He sniffs it for a bit, and then starts tentatively licking at it. Feeling a warm tongue pressing against your pucker makes you shiver and sends waves of pleasure through your tiny, slow dog brain. You can't think of anything but having your ass filled right now, not that you could think of much else before.
Suddenly the other dog stops licking and backs off again. Your stupid dog brain is confused and can't figure out while he stopped licking, but then you think he might be about to put his doggy rocket in you. You feel very smart as you pant and turn to look at him, but he's backing off again. You are too dumb to realize that he seems afraid and is trying to avoid something. Instead you sit there panting, looking at the other dog with your tail raised as he continues to back away. He takes a few steps before a rumbling sound comes from his stomach. He pauses for a second, shakes his whole body, and squats down. A small farting sound is made, and the other rottie begins to take a crap a few feet away from you. Your stupid dog brain is unable to come up with a reason why this would be bad. He looks embarrassed for a second as the doggy doo-doo starts leaving his tailhole, but his expression begins to relax more and more as his shit continues. Soon the turd pile hits an absurd height, piling on the kitchen floor, and his expression matches to the stupid, horny mutt he has become. Gone are any memories from his empty little dog brain of a human life, left only with the gay canine instinct to shove his big dog dick into your tight tailhole.
His doggy dick begins to pour with pre as he approaches your waiting tailhole, the scent driving you mad again. He starts licking it again, sending waves of pleasure through your simple dog mind. He then pushing his tongue in, trying to get as much of your delicious scent and taste in his mouth as he can, sending you into a howling moan. He pulls his tongue out and immediately replaces it with his doggy dick, much to your pleasure. He begins humping at you faster and faster, your sex-addled brain completely overwhelmed with pleasure. At one point he thrusts, and can't stop himself from knotting with you. Your dumb dog brain had hit its limit of pleasure it could register long ago, so you've only been reduced to a panting, drooling horny mutt. Soon you feel a throb as your ass is filled with doggy cum, and soon after your own doggy dick lets loose a flood of cum onto the floor mat. Both of you collapse on the floor in your puddle of cum, as the other rottie tries to pull out of you. However his knot is still inflated, so try as he might he can't get it out of your ass. After a few minutes, his knot deflates and he pulls out and lays down in the cum next to you, your ass leaking out his cum.
However, now you feel like you need to take a crap. You stand up, and feel that funny tingling feeling move from your head to your stomach. You think this is as good of a place as any, and begin your business next to the other dog. He looks up and sees what you are doing, but can't come up with a reason to move in his stupid doggy brain. Soon you are taking another wonderful crap right there on the floor. When you finish, You smell something delicious and look down at all the cum on the floor and on your belly. You begin to lick at it, unable to remember where it came from. The other rottie stands up as he smells something irresistible behind him, and sees your new pill of dog shit. His stupid dog brain thinks it's a good idea to start eating it, and he begins doing so. You also smell something great coming from a few feet away, and see another pile of stale dog shit. You go over to it and start licking at it. It tastes fantastic to your completely stupid canine mind, as the two of you continue to eat each other excrement.