Mason's dazed eyes looked upon the sight of what appeared to be bunch of beaver men building a giant beaver dam. Their clothes seemed to vary from hiking clothes, to lumber worker uniforms from a nearby lumber company, to even skirts and other women's clothing. Some of them even were wearing remnants of lab coats, revealing what had happened to the scientists after they tried to contain the situation.
All of them had big rips in the seat of their pants, revealing their furry brown asses and broad beaver tails hanging out them. The fronts of their pants were either unzipped or ripped open to allow their erect, furry cocks to stick out, allowing their cum and pre to drip into the water. Their footwear were either nonexistent or ripped to allow their webbed paw feet free. Like their paw feet, their hands were also a hybrid between human and beaver paws. Heads were pushed out into half muzzles with their large buck teeth sticking out from their mouths. Ears were higher up their heads and were rounder while their eyes dilated to appear darker. And they all had a coat of brown waterproof beaver fur covering their bodies, even under their clothes.
Many of them were walking along the massive beaver dam, slapping their broad tails to pack mud, bunches of sticks and branches, and logs into the structures. Others were going back and forth from the forest, following a trail of semen and returning with sticks and logs in paw hands, their buck teeth left with bits of chewed wood. And for those that weren't currently working, they were taking each other from behind, dumping masses of their infected beaver cum into the now creamy river.
All of this seemed so appealing to Mason as he watched them slapping their tails and fucking each other. It felt like... home to him. But yet, there was something in the back of his mind that was reluctant about the whole situation. What he didn't realize was that his front teeth were already growing larger and suited for chewing wood, a growing bulge was pushing through the seat of his pants and his boner was twitching harder than ever, already leaking pre into his underwear.