She stopped in mid word an ran her tongue along the inside of her mouth. Something didn't feel quite right, like she was getting more sensation than normal from the inside of her mouth.
Tiff watched her friend's odd expression with mild fascination, trying to figure out why Katie had stopped talking.
Katie licked her lips, trying to figure out what was wrong with her tongue. The rest of her mouth felt fine, but there was something just not right about the way her tongue felt. She closed her mouth and let it lay still, only to feel that it was pressing up against her teeth more than normal. Had the fruit caused an allergic reaction that was making her tongue swell up?
"Tiff, is there anything wrong with my tongue?" she stuck it out for friend to look at.
"No, not that I see. Why?"
She pulled her tongue back into her mouth, "Oh, no reathson."
The instant the words left her mouth she knew them to be a lie. Her tongue was pressing up against her teeth and felt more round than it should have. Again she moved it around inside her mouth, getting the oddest sensation from the action. As it went along the side of her mouth she was able to feel a difference in it though, the tip felt rounder, more broad. When she tired to let it lay flat it pushed against her teeth, forcing her to open her mouth slightly. The feeling of the soft, moist interior of her mouth sent a not entirely unpleasant feeling running through her tongue, "Tiff I fink th-ere'sh thomething wrong wif my mouf."
Her attempt to speak only intensified the feeling, making her tongue slip out between her lips. This time when she tired to pull it back into her mouth it wouldn't fit. The pressure of her lips against her tongue made her shiver. It definitely felt more round than it should be, not to mention it was much longer.
Tiff looked on in horror at what was sticking out of Katie's mouth.
"Waa?" Katie tired to ask what was wrong with her, but she couldn't get the words out. Her tongue had started to stiffen, making it impossible for her to speak or even get it back into her mouth. That didn't stop her from trying, though by now it was sticking out a good four inches from her face.
Clamping her lips tight against it only caused it to harden faster and create a delightful throbbing feeling.
"Mmmmm," a moan of pleasure escaped her as her tongue throbbed harder, continuing to stretch farther out of her mouth, a perfect cylinder, slightly larger tip with thick veins running down its length. Her fear and pleasure mixed in a most delightful way and she continued to try and move her tongue while keeping her lips pressed firmly against it.
It stopped growing when it stretched nine inches out in front of her face with a proportionately wide diameter. There her eyes were able to focus on the tip, now a throbbing cock head. Her eyes went wide, but she was too engrossed in her pleasure to care. Saliva dripping from her mouth mingled with pre-cum flowing from her new, oddly placed cock. Amazingly she was still able to taste with the cock and the salty flavor of the pre-cum drove her wild.
"Nnnmmmmmm," she groaned and clamped her lips tighter as she felt a tensing from somewhere inside her throat, spreading up into her mouth. A thick, creamy spurt of cum jetted out of the cock sticking out of her mouth and she could taste it. There were two more spurts, lacking the intensity of the first and then her tongue began to go flaccid.
As it slightly decreased in length and width she realized what had just happened. With the pleasure gone the fright returned full force. Her tongue was now a long, thick cock, far too large for her to pull back into her mouth.
"Iff, waa o ee o?" Her horror only grew as she struggled to speak, her now limp tongue was too large to pull into her mouth and too soft for her to speak properly.