John and Carrie looked at each other, smiled, and nodded to her.
Their unnamed blonde assistant smiled back, "Good. Well, let the fun begin." The blonde drew the curtains closed, darkening the room considerably. "No need for the sunlight to end our fun early," she said, obviously eager to begin. She opened the bottle, carefully measuring a small amount of the liquid into the cap. "Now then, this is all you need. We can't be responsible for what might happen if you drank much more."
Tilting her head back, she poured the shot down her throat. "It takes a couple seconds for it to really kick in," she told them. "It just has to work its way into your syst-BUUUUUUUUUUURRRRPPP!" The blonde let out an enourmous belch, cutting off her words. "It's..it's start..ing!" The blonde said, struggling to speak. Her eyes had doubled in size, glowing a bright red.
Her ears elongated quickly, the pointed tips poking through her long blonde hair. Her teeth elongated into fangs, protruding over her lips. Carrie and John were suddenly aware of a maddening scent emanating from the blonde's panties. John was rock hard, both from watching the change begin as well as the musky aroma filling the room.
Carrie wasn't immune either, finding herself wanting to taste the liquid that carried such a fragrance. "John," she whispered, "I want...I want...to taste her."
"Go ahead, love," he responded, pulling Carrie's shirt off. Long talons had sprouted from the blonde's nail beds, a deep red-black color. Her jaw had begun to jut forward; and she smiled broadly at them. With a tiny movement of her talons, she sliced her panties off, as well as her bra. Her body had begun to grow a fine coat of blonde fur, which was growing thicker by the second.
The scent, which had already been strong, became tenfold stronger now that the source was freed from its confines.
Carrie dropped to her knees, seconds after fully disrobing. She crawled to the blonde's mound, eagerly beginning to lick at it. The mound throbbed and pulsated, twitching as fur began to blossom. The blonde let out a low howl of pleasure at Carrie's eager tongue, and it seemed her changes came quicker.
John, unable to control himself now took his clothing off, beginning to slam Carrie from behind, but for once was not intrigued at all by the woman he'd married, but by the blonde. Two more sets of breasts blossomed from her torso, and he fucked his wife harder. The blonde's muscle mass increased by at least thirty percent; taut muscles bulged beneath the skin and fur coat of the shewolf. John fucked harder, never taking his eyes off of the blonde, almost mechanically fucking his wife all the while.
The blonde's face elongated further, while her forehead took a noticeable backward slope. Her nose became blackened and leathery at the tip as the change hit its final stages. The blonde wolf fell forward as her tail blossomed, all the while still grinding her musky hole against Carrie's still-eager mouth. John erupted frighteningly hard inside his wife, harder than he ever had before.
Carrie, whose continued lust had been fueled just as much by her husband's fucking as it had by the scent of the changing woman, finally stopped her oral action. Now John and Carrie were faced with a lusty shewolf in their hotel room. The shewolf raised herself back up to two legs, motioning at John, who couldn't exactly tell what she wanted.