Krystal began to salivate as her lips uttered the words. “A big, hung Bull." She said. Saira gasped in shock. "It'll happen slowly. Starting with you growing a..." Krystal licked her lips loudly. "Cock.” She shuddered at the word. “Then your feet will begin to transform. The rest of the change will work its way up your body. You'll be like me, so you'll still have the ability to talk, but you'll be mooing too!" Harriet and Rebecca just blushed. Saira opened her mouth to speak. "Oh you suck. I am so gonna get you for this later." She was now just waiting for the transformation to begin. "Don't be angry at me! I'm in heat! If you wanna blame someone it should be Harriet! Hey, here's an idea how about we piss on her?" Krystal said defensively. "Hey, hey, let's not make rash decisions! It's just a game!” Stammered Harriet. “You know..." Said Saira. "That's not a bad id-unghhh." But before she could finish her sentence the change begun.
Too caught up in arguing she had forgotten to remove her pants. This had proven to be a 'huge' mistake. She felt her pussy begin to tingle all over. The experience itself actually felt like she was just using a vibrator. Discarding her humility she shot her hand down her pants to rub her changing sex. Feeling around with her hand she could tell she was drenched. This was visible to everyone else in the group as the bright red fabric of her tight pants had become stained around her crotch, the color turning a dark shade of crimson. She felt around for her vagina, finding the familiar opening she noticed it felt more... loose. She shot her hand inside and started fingering herself. "Mhmmmm! Unghhh... Unghhh..." She moaned as the transformation progressed. Her face gleamed with perspiration and her top had darkened patches all over it. Her hand began to hit something within her vagina, something that was forcing its way out. It quickly pushed her hand out and began to fill her panties rapidly. She pulled her hand out of her rapidly tightening panties and sniffed its sweet scent. She licked the juices from her hand as the shaft in her panties continued to gain mass. Krystal stared on in wide eyed amazement and anticipation as the fabric on her pants groaned against the pressure they were being put under. Much to her glee they snapped and the full length of Saira's flaccid cock came bursting out, and as specified she was hung, even for a bull.
Saira was left panting, having come down from an extreme high of pleasure. She looked down and saw her new appendage. It hung down to her knees. And she wasn't short. She poked at it, shivering with pleasure, but still weirded out by the sensation. She liked her vagina, and was a little sad to see it replaced with this disproportioned object. Krystal on the other hand couldn't be happier. Her smiled was so wide it somehow extended off the sides of her face. "Heeey there Saira!" She said running over with school girl glee. "How about you let me give that thing a test drive, huh?" Saira smirked. "Good god you want it that bad you’re just throwing yourself at me!" She said provocatively. "Hey! Don't blame me! Do you know what it's like to be in heat!? I'm so god damned horny and now that I can smell your "Shudder"... C-c-cock my pussy is literally dripping. Can you please put me out of my misery? I'm begging you! Fuck me!" Krystal grabbed her pants and underwear and with one swift stroke ripped them from her body, revealing that her legs had grown fur. She got on to all fours and presented her opening to Saira letting out a large “Mooooo!” As she does so.
Saira’s looked down at Krystal hot sex. Her loins began to stir as she noticed herself getting hard. Her body wants to fuck her, but does her mind doesn’t want to give Krystal the satisfaction?