"How about none?" Jess snapped back, "Now untie me, I don't want to try your stupid vials."
"Sorry, you don't have a choice. I'm sure that when you try some of it, you'll enjoy yourself, so just hang in there. I'm not gonna hurt you or anything," Mary replied.
She walked over to the box with the vials in them and started browsing throught them. "Hmmm...Oh, I just had a naughty idea," she said in a semi-seductive tone. She took three vials from the box and went into the kitchen.
She grabbed a glass and poured the contents of the three vials in it, one completely and the others only partially, and stirred the liquid with a straw. After a while it started to become fluorecent orange. "Ooooh, pretty." Mary joked, and went back in the room where Jess was bound.
"Now you just drink this and I'll let you go," Mary assured Jess. "Really? No foolin' around? You'll let me go? You won't hurt me?" "Look, Jess, what do you think I am, a monster? Of course I won't hurt you. Really, you disappoint me." "Yeah, well, you DID knock me out and tie me to your bed." "Yeah, but I'm just fooling around. Now just drink the stuff."
Jess rolled her eyes and put the potion to her lips. "Promise you won't hurt me?" she said. "Promise," Mary replied.
Jess took a deep breath and took a sip. It tasted a bit bitter and made her throat glow. She closed her eyes, thought of candy, and drank the whole glass to the last drop.
"NOW will you let me go?" she asked, somewhat annoyed. "Not untill it starts working. Believe me, this should be good," Mary said, and Jess rolled her eyes in frustration.
"Look, it's not gonna work. This stuff can't be real because that would be a violation of the laws of physics and stuff like thatooooOOOH!" Jess yelped as she felt something starting to burn inside her belly. "Oh, what is this stuff? It makes me feel all warm," she continued as she had caught her breath. "I told you, it's a magical liquid that can transform your physical self into another form. Also, it makes me spew out all of this technobabble. It's tons of fun," Mary answered in a silly tone.
Jess opened her mouth to talk again but quickly let out a sharp moan. She looked down at her breasts. They were tingling all over and it was feeling good.
"Oh this IS fun!" Jess panted between breaths and followed her words up with another moan. Her eyes were still fixed on her breasts and opened wide as she saw what was happening. They were inflating. Her breasts were actually swelling with a slow, pulsating rhythm. Everytime her breasts pulsed and grew, she let out a small moan of pleasure. Also, the rate at which they were pulsating increased, causing her moans to quicken and soon she was constantly moaning as her breasts (and her nipples as well) were expanding greatly.
"See? I told you so," Mary said, clearly having fun watching her friend slowly change.
Jess nodded vaguely, lost in pleasure, but screamed suddenly. Her nipples were multiplying! Where there first were just one nipple on each breast, there now were four! And they were expanding.
"Holy shit Mary! What the fuck did you give me?!" Jess yelled alarmed. "Oh, a complete vial of human woman and a third of a vial of, y'know, milking cow," Mary giggled. "MILKING COW?!" Jess yelled and tied to jump Mary. However, she was still tied to her friend's bed.
Jess could only watch as her breasts were transformed into enormous crosses between a cow's udder and a human female's breast.
"Jesus Christ, how big are these things?!" Jess wondered out loud, looking at her gigantic mammaries which were almost completely blocking her vision of the room's cealing.
"Well," Mary said, "If it exists, I'd say about 40 MM cup."
"Forty Double M?!" Jess yelled, and was about to start calling her captor friend names if she wouldn't have felt another tingle going through her body. Speechless, she awaited.
She didn't have to wait for long. The tingle concentrated on the skin beneath her breasts. She had a feeling of what was coming. She felt another pulse going through her and felt eight little nubs pop up underneath her breasts. Another pulse and she felt them grew bigger. Another pulse and the same happened again and she moaned again. This went on for another few minutes as her lower chest slowly inflated to incredibly sized breasts too, complete with the four long nipples/teats that her original pair posessed.
At the same time, thouhg, she could feel a slight tingling on her abdomen and legs, and soon realized that short, soft black and white fur was sprouting there. She reveled in the sensation they little hairs brought untill she felt a sharp pain in her feet and lower legs. She managed to peek a glance at them off to the sides of her gargantuan bags of fun and saw that her toenails were slowly blackening and fusing together foriming cloven hooves, as well as the rest of her feet reforiming into a completely new jointed part of her legs. The grande finale, or so she thought, came just after in the forum of a little black and white tale with a fluffy cuff on the end.
"There. Done," Jess said annoyed, "Now change me back, because I can't go out on the streets like this!" "Hohohoho, hold on there missy, you're not done yet," Mary taunted, "Nope, there's still the third vial to be reckoned with." "Which is?" Jess questioned. "A third of the male vial," Mary answered nonchalantly.
Jess was speechless for a while.
"What?" she asked. "A third of the m..." "I KNOW WHAT YOU SAID!" Jess interupted furiously, "I want you to untie me right..."
Jess was interupted, however, by a sudden pulse and wave of pleasure coming from her groin area, causing her to yelp in surprise and delight. She felt herself growing taller and more muscular, and was finally able to peek right between her massive cleavage right down to her groin. Her eyes grew wide and her mouth opened wide. Right there from the center of her groin up to her bellybutton was a big black sheath, and what came poking out was big, and growing with each pulse. It was a gigantic red bull's cock, fully erect and growing, and to the sides of the bottom of the sheath were to massive pulsating testicles the size of tennis balls.
"Holy shit..." Jess whispered as the cock kept on growing, and ended up between her two lower tits.
She'd had enough. The pleasure the pulsing of her giant growing cock gave was making her horny beyond belief, and she started thrusting her monstrous shaft in between her massive cleavage.
Meanwhile, Mary had had enough as well. All this was getting her hornier than ever and she had to get off fast. Her eyes were fixed on Jess' member which had finally stopped growing and which ahd to be at least three feet long and six inches thick. MAry felt herself getting wet and wanted it. She wanted her friend's bovine cock all the way up in her, but there was no way in hell that she'd fit over it. She thought up a plan.
Mary ran to the kitchen and grabbed the female vial just before she remember she'd used it all up on Jess. However, right after remembering that she remembered that she'd used it all up on herself as well, meaning that they were able to replenish themselves somehow. She grabbed the vial which was full, and drank all of it a second time.
Soon enough she felt the pulsing coming over her. She took off her clothes and lay down on the floor, masturbating furoiously while watching her breasts grow to at least 40 GG size. She felt her clit grow as well in her hand and after a short while it was bigger than her entire thumb. She felt a tingle underneath her breasts and brought her hands up to feel her skin and grabbed hold of two new erect nipples the size of her thumb. She began moaning as she twisted them between her thumbs and index fingers and soon enough they were the same size as her first pair, with proud erect nipples the size of chili peppers.
She moaned in extacy as she felt her love tunnel deepening and her pussy becoming tighter and more elastic. Her torso lenthened in order to accomodate her enormous breasts, and she got up, having to adjust slightly for balance. She walked back into her bedroom, where Jess was still pumping her hard dick between her wet, lactating tits.
Mary walked over to her and pulled the massive member away from between her friend's tits and gave it a lick from the base to the tip, causing Jess to shudder with delight.
She positioned herself over her friend's huge dick and slowly inched herself onto it's tip. With a wet pop her moist slit enveloped the rod and after waiting for a few seconds she plunged herself completely unto her friends massive rod, completely engulfing it and causing both to shout out with pleasure.
Mary took one of Jess' five-inch nipples in her mouth and started sucking it, causing Jess to moan with delight. Suddenly, however, Mary found a cool liquid entering her mouth. Jess was lactating.
Mary pumped up and down firiously, increasing pace constantly and suddenly, Jess exploded into her, coating the walls of her mega cunt with a galon or so of hot, sticky cum and causing Mary herself to climax.