Her rectal temperature is taken - differently

Jeff knew at once what he was feeling at his finger tip. It was nothing else than Lisa's bowel contents. As he had forcefully worked his finger into the girl's anus, he hadn't thought about the girl being full of shit. In porn, he must have thought, the girls usually are as clean and pink as it can get. The brown side of life? No.

But this was different. This wasn't porn. Jeff's finger was buried in the girl's butt with all it's consequences. "Oh, darling! Are you constipated? Do you need to shit?", Jeff asked with a sly smile. Hearing the word shit, Lisa's face reddened and she involuntarily clenched her butt cheeks. "I, eh, yes, I think, maybe could I use the bathroom, please?", she stammered, her voice a girlish squeak.

While Mike had already thought about letting her empty her stretched bowels, Jeff had a better idea. Much better, he thought. "Mike, poor Lisa is feeling unwell. Maybe we should give her a little check-up. What do you think?" Mike nodded. "Let's take her temperature." Only now Jeff slowly withdrew his finger from Lisa's rectum making her squeal at the shameful act as it braced her rectal walls. Inch by inch she felt slipping out of her. Finally, with a dirty and sucking noise, the finger left her anus. Along with the finger came a little gas, the sound of her fart almost made Lisa die of shame. At once Lisa tried to shut her butthole, swearing to herself not to let anything in (or out) again.

Jeff's finger of course had a slightly brownish stain on the very tip. Not very much, but enough to recognize it as Lisa´s poop. He held it under Lisa's nose which made the girl blush in embarassement again. It stank of her bowel contents. What kind of horrible people are they, she thought. Wo would want to touch a girl in such a filthy place? At least now they want to take her temperarure. That's ok. Relax, she told herself. Open you mouth and it will be over soon.

It wouldn't. "We only have this old steel thermometer. It was designed for horses. But for you, Lisa, it might be just the right thing", Jeff said grinning. In his hand he held an object that seemed to belong to a museum specialised on medieval medicine. Or rather ****? It was made of metal, about ten inches long and had a huge cone-shaped tip, maybe two inches in diameter. With the device in hand he stepped behind Lisa's tiny butt. As she lay on her back she had already seen the frightening instrument. "Sir, don't put it into my mouth, it doesn't look very healthy to me", she pleaded.

"Lisa! Don't you worry. No need to panic, this fellow isn't going into you mouth." He then placed the huge metallic tip at the girl's tightly shut anus. The reaction was soon to follow. "Noooo! Leave me be! That ... thing ... won´t fit in there! It will rip me open", Lisa wailed again. Besides, she remembered with growing panic, she still needed a toilet. Actually, the urge in her lower intestines had intensified in the last minutes. Her belly felt like a snake pit.

"Alright, sweetheart. I need to insert this fellow into your butt", Jeff said. "As I said, it was used on horses, their anatomy is a bit different from the human one. The mark to which I will push it up your bowels is about eight inches from the tip. All of it will fit up you little asshole, be sure of that." Eight inches. That didn't just mean that it would reach the depths of her bowels. The thermometer's diameter increased to over three inches at the widest point. Lisa almost gagged. Her anal muscles quivered. She pressed her bum cheeks together the way she had done years ago in the girls' changing room before the swimming class. Those days she had, her face as red as a tomato, tried to hide her anus from the sight of her teenage classmates, pretending she didn't have a hole back there at all. Feeling filthy and humiliated because the girls might have seen something of it - or even somehing brownish! It was the same right now. The only difference: Back then, it was just humiliation and a yucky feeling in her rectum. Now her neatly hid butthole was about to get stuffed like a turkey.

That's inhuman, she thought. Eight inches! Three in diameter! Oh my god, is this even possible for a girl of my size? Not that she had known or guessed anything about the limitations of female anal intercourse. And, that was her worst fear, what if it touches her poop? Will it, ugh! , push it back? Sort of...upwards? Will it hurt bad? Before Lisa could fully develop her worst nighmares in her mind, Jeff placed the tip - an unremarkable word for such a gruesome thing - at her tight rear entrance. The girl felt it. It was cold, very cold. And she felt as if she could sort of smell it, taste it with the tightly shut mouth of her anus. Metallic, industrial, painful. Like the tender kiss of a lover her anus touched the metal leaving a warm and moist stain on its very tip. A stain that was almost colourless apart from two small brown dots. Had Jeff had the leisure to smell on it, he would have sensed a scent of womanhood mixed with fear-sweat and fresh poop.

Then the thermometer moved forward. It pressed against the inner side of her buttocks being much larger than the tiny ring between them. It covered almost one third of her entire petite and girlish backside More pressure. Lisa squeaked. Her mind raced. What can I do? Open up? Let it enter my butt? A thought that turned her stomach. It might hurt less, if there is a less at all. Maybe. Closing her teary eyes she pushed. Anxioisly at first, but as she panicked more she pressed with all her might, grunting and tensing her womb.

Jeff recognized that. Her face was grimaced in an effort to open up for the unevitable. "Yes, now you behave, push as if you were taking a shit, Lisa. Push it all out!" For a split second her anus opened, a tremulous, wet fart escaped from her butt. Lisa blushed, Jeff pushed. Now the girl screamed. In the same moment as her bowels had got rid of the gas and she had felt a little relief in her intestines, the metallic tip had made the very first step of its journey up her butt. Sllllrghhpffff, it was a wet and sucking noise and it prevented another fart from exploding out of Lisa's butt. Her intestines grumbled loudly.

"Please, no! Stop, I'm full", Lisa pleaded tearing up. Paying no attention to her, Jeff concentrated on the next push. He used both hands now, gripped the thermometer like a baseball bat and shoved it forward. As the tip had already entered, her pink butthole opened like a flower, it now began to bloom, closing it's fleshsy petals around the cruel shaft. "Ouuuuuuuughhhhaaaaeeeee" was Lisa's response. She still couldn't accept what was happening to her. Her once virgin and untouched anus was now filled with a giant steel thermometer buried between her ass cheeks. And it kept moving forward like a snake. When Jeff cried "three inches inside you, girl, only five left until we can check your rectal temperature", giving the rod another agonizing push, her tummy rumbled, Lisa wailed in pain - and lost control of her bowels.

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Feel free to write alternative storylines! I'm very curious what you think Lisa's experience might be like and how the story could go on.