"I don't understand why we have to test the touch tunnel first," moaned the young teacher's aid.

It was a famous and very popular exhibit at a local science museum, a completely darkened maze that the kids had to crawl though, navigating only by touch. It was designed for children, so for the adults it was always kind of a tight fit. The TA was a woman in her twenties and honestly felt these kids exhibits were beneath her dignity. Plus she'd worn entirely the wrong kind of clothes for crawling around: a micro skirt and no panties. If it wasn't pitch black, whoever was behind her would have gotten a perfect view of her bare butt the entire way.

"Oh come on, it's fun," said the teacher she was to assist, a woman only a few years older and in her first year as a teacher.

They'd been feeling their way along carpeted walls and floors for nearly fifteen minutes, which meant they should have been nearly out, when the TA in the front heard the tinkle of metal.

"Oh, perfect. I lost an earring. Wait a mute while I feel around for it."

"Come on, if you just keep going I'm sure when we get out they can send someone through with a flashlight to find it. Oh, this is a new obstacle..."

The TA stiffened as she felt fingers spread her butt cheeks.

"What's going on back..." *SLURP* "HAH!"

She gripped her fingers tightly into the carpet as she felt her overeager boss force her head right up her ass. Normally she'd have screamed for the other woman to stop, or perhaps cried for help from one of the people running the exhibit. As it was, the feeling of a squirming, fleshy form wriggling its way up her butt was... extremely erotic to her. The sensations traveled up her spine and lit her mind on fire. It literally took her breath away. All she could do was lightly clench her cheeks every now and then, make silent whimpers of ecstasy, and wonder how precisely this was going to turn out.

"Oh, wow, the texture in this part of the tunnel is really unique. It's a little tight, though. And I didn't realize they'd add in smells too," came the teacher's muffled voice as she squelched her way deeper, sliding waist deep, then knee deep.

Finally she pulled herself entirely inside, though the tight ring of her assistant's sphincter managed to squeeze one of her shoes off.

"Oops! Guess when they are looking for your earring they'll need to find my shoe, too. ... Oh, wow. The sounds are a great touch. So bubbly and sloppy. They sound so organic. ... Did you get to the part with the really sharp turn, and all of those tingly wet things along the walls? ... Hello? ... I guess she already got out. Mmm... It feels kind of nice... I'm not sure this part is really appropriate for kids..."

The TA shuddered and twitched as the anal stimulation slid deeper and became a more general internal wriggly sensation. It was less overtly arousing, but no less intense. She could feel every inch of her boss's body, every supple curve as it slid and slithered along her intestines. Having no light, and thus no vision to distract her, the last few minutes had caused her to rely very heavily on the sense of touch. It served to make this experience doubly nice.

"Oh, good. It gets a little looser here. Gosh, this squishy bit feels so... strange. And it smells like ketchup. I wonder if they change the scent from time to time. I'll tell you this, next time I'm going to have to wear a swimsuit for this. I'm getting soaked! ... Hmm... getting tight again."

She began to feel fingers and arms forcing up her throat, and out of reflex she swallowed, forcing them back down.

"Gosh! There's resistance in this part! ... Hmmmhmmmhmmm... That rippling feels nice. If we weren't in a hurry I might want to stay here a while and just let it knead me for a bit... I wonder if they use massages for this part? But I'd better get back at it. Don't want to keep my assistant waiting."

The fingers forced up her throat again, this time squeezing forward despite her body's attempts to pack them back down. After a few more seconds, the fingers slid from her mouth and grabbed either side. A bit more tugging and slithering caused the teacher's head to pop out.

"Those little hard things could be painful if people aren't careful. I'll have to mention that to the parents..."

She squirmed and crawled, inching her body across her TA's tongue until she plopped stickily to the carpet again and continued crawling. When the TA regained her composure again, she followed. Not five feet of crawling later, they pushed through some flaps and emerged into the light. Her boss was sopping wet, much to the confusion of the exhibit crew.

"Oh, there you are!" said the teacher. "How did I get ahead of you? There must have been two paths!" She gave the TA a nudge. "You should go through again. That last part I went through is LOADS of fun..."