Brittany stepped backwards, her breath starting to get manic as she poked at her new flabby stomach. Derek quickly got up and checked out the door to make sure no one had noticed them. All quiet in the newsroom. Closing the door, he picked up the coffee, inspected it, and thought over his next actions. He wanted her to have more, partially because cows and transformation had always been fetishes of his, but also because he was curious if all this could really be done by a simple cup of coffee. How was he going to convince her to have more though?
"Derek..." Brittany said, a note of panic in her voice. He looked over at her, but was surprised to see her eyes glued to the coffee cup in his hand. And... was she salivating? She seemed to be gulping quite a bit and licking her lips subconsciously... "Derek, can you... can you maybe get me a glass of water?" she asked, finally wrenching her gaze from the cup.
Derek saw his opportunity and tried hard to hide his smirk. "Here, you can have more of this-"
"NO!" Brittany said forcefully, before gathering her fraying emotions. "No thank you, I... uhh... I think that coffee might be why I'm going through... this..."
Derek stepped forward and tried to act warmly, coffee cup extended. "Only way to know for sure though, right?" Brittany didn't answer. She was once again mesmerized by the coffee. It must have some sort of addictive qualities to it! "I mean, it looks like you're really thirsty. Don't worry, Britt. Can I call you Britt?" he asked, trying to get her to open up more. She nodded slowly, only barely seeming to register his words. "Britt, just have another sip. I want to see if we're right. There's no way coffee can make you grow cow ears right?"
There was a long pause as Brittany bit her lip in deep thought. Another small gurgle escaped her midsection, but she hardly noticed. Finally she grabbed the cup and slowly took a sip. It was a small sip that turned into a couple small sips as soon as she tasted the drink. She quickly stopped though, put the drink down on a nearby shelf, and stood as stiff as a board.
Derek waited, and walked around Brittany, now having an excuse to look her up and down. Other than the ears, she still looked as normally hot as ever. The little gut actually didn't look too bad on her skinny frame either, Derek mused internally. Brittany looked uncomfortable with his gaze, but still stood paralyzed in fear.
"Do you.. do you see anything??" she asked timidly.
"Nothing. So, guess it wasn't the coffee after-" Brittany jumped with a yelp and grabbed her ass, interrupting Derek's consolations. With an audible FOOMF sound, and the sounds of stretching denim, Brittany's athletic bubble butt instantly swelled outwards. The growth wasn't limited to just her ass, Derek noticed, as her hips and thighs also gained a healthy dose of fat added to them also. Brittany groaned in discomfort and started struggling to unbutton her tight jeans.
"Oh my God!" Derek exclaimed in disbelief. "Your butt.."
"I know I know, it's bigger! What the fuck is in that coffee?!" Brittany said, fumbling with her button. She wasn't fast enough though, and with a TWANG, the button flew across the room. Her jeans practically looked painted on with her shapely new rear. Brittany leaned forward and tried to peel the dark jeans off her as Derek eagerly stared at her large posterior in full clear view.
Brittany's purple thong was strained with the new butt and hips it contained, but Derek was more surprised with what was happening where the thong couldn't reach anymore. Right above the crack peeking out of the top, a nub of skin was wiggling and growing at a faster and faster pace. Although Brittany was unaware of her growing tail and still pulling off her pants, Derek's eyes nearly popped out of his head as his dick swelled in his own pants. Over the next minute, the nub grew into a golden fur covered tail that swished back and forth over her large rear.
Derek tentatively walked forward and grabbed the new tail to see if he got a reaction out of Brittany. To his surprise, she didn't even flinch. In fact, she wasn't struggling with her pants anymore... Finally looking away from the glorious ass, he gasped in shock to see her thirstily gulping down the coffee! It spilled out of the sides of her mouth and unto her quickly growing chest.