Natasha has just started playing a game in which a machine is going to tickle her while she has to try to stay completely still for as long as possible. She has ignored the artificially intelligent machine's advice and instructed it to complete trillions of iterations of training after having scanned her brain, meaning it knows all her weaknesses and can exploit them to make her lose as soon as possible. And the quicker she loses a round, the longer the next round will be.
Surely, nothing can go wrong for Nat. After all, it's just a tickle game.
***
Nat heard more humming sounds and saw two of the holes in the wall open, one on either side of her. A mechanical tentacle with a hand on its end came out of each hole and positioned itself above her belly. This was it. Both hands attacked her simultaneously, and it took all her effort to not immediately move her own hands down to protect her sides and lose the round. Nat burst out into uncontrollable laughter as the hands expertly spidered around her ribs and squeezed her sides, constantly changing their tactics so she never knew what to expect. They especially focused on the lower part of her stomach, which was exposed due to the short tank top she had decided to wear for exactly that reason. Somehow they felt exactly like human hands, warm and soft, but they showed a mechanical efficiency that was only achievable by an unforgiving machine.
For Nat, this was heaven. Emma knew exactly where she was ticklish and was using that knowledge to perfection, poking around at her sides while all she could do was keep her arms stretched out above, giving Emma complete access. Nat glanced at the screen and saw that it had only been 6 minutes, meaning she still had another 14 minutes of this to go. She was barely holding on, and this was with just two hands being used on her. Nat eagerly anticipated how it would feel to be attacked by several more at the same time.
As if she heard her thoughts, Emma decided to show her exactly how it would feel. While Nat was too distracted being tormented by the hands on her ribs, she didn't notice two more holes open up in the walls to give way to more hands. These new hands, just as soft as the other ones, placed themselves next to her armpits and hovered there for some time, waiting for the best time to strike. When they finally pounced on her pits, Nat was so shocked by the sudden ticklish attack that she instinctively moved both arms down to protect her armpits, before even realising what she had done.
Four holes in the floor around her instantly opened up - two near her hands and two near her feet. Round cuffs shot up from each hole and swiftly grabbed Nat's wrists and ankles, stretching her back out into the Y shape she was in before. More restraints shot out from holes around her body and wrapped themselves around her thighs and waist. Nat tested her restraints and found that she was completely unable to move.
"You lasted 9 minutes," Emma announced, "meaning I've got 11 minutes left on the clock to punish you. Remember, your target next round will now be 32 minutes, as I double the time you have remaining in this round and add ten minutes for good measure."
Nat didn't know what this punishment would involve, but remembered reading something about maximising her sexual frustration. Emma had also warned her about the frustration being unbearable to her due to the amount of training she had gotten, but Nat was never one to back down from a challenge. In fact, she was incredibly turned on by the idea that a relentless machine was about to sexually punish her, especially after seeing how efficiently it had just tickled her.
"But first, as per the rules of this game, I get to remove one piece of clothing from you. I think I'll go with those shorts of yours."
Nat's ankle restraints were briefly removed as more mechanical hands grabbed the bottom of her shorts and effortlessly removed them from her legs, exposing her tiny panties to the air. After they were removed, her ankles were grabbed once again, and Emma began her punishment as the clock on the screen resumed the countdown.
This time, Emma's machine hands focused their attention on Nat's newly exposed thighs. As two hands slowly approached her lower half, Nat prepared herself for the aggressive tickling that her ribs had suffered moments ago. However, Emma took a different approach this time. The hands started giving Nat rapid feather light touches all over her thighs, and she couldn't help but let out tiny giggles as the soft fingers danced around between her legs. More hands positioned themselves at her sides and pits and tickled her the same way, and her giggles became louder as Emma mercilessly punished her without a break. Even more hands appeared and started to attack just under her breasts through her top, and Nat started to really test her restraints, discovering that she could not move an inch and was entirely at the machine's mercy. Her laughter was silent now as she was overloaded by her several tickly assailants.
"O-o-oh f-fuuuckahahaaa-" Nat could only say a few random words occasionally before going back into a fit of silent laughter. She had a look at the clock and saw that there were still 5 minutes left in her punishment.
"If you think this is bad, you have no idea what's coming. I know exactly how to torment you to your limits and I have no intention of showing any mercy." Nat was insanely turned on by what she was hearing, and Emma had noticed her wet panties even before Nat did.
The hands on Nat's thighs started moving closer and closer to the edge of her panties, while the other hands slowed down until they were just stroking all over her body, teasing her. She could feel the hands on her thighs continue tickling closer and closer to her sex and her breathing sped up as she imagined how those feather touches would feel on her most delicate spot. On reaching the very edge of her panties, the hands stopped moving and kept touching her there as the other hands rubbed her body all over - her sides, waist and below her breasts were all subject to this teasing. Nat tried moving her pussy to cause the hands to make the contact she now desperately wanted to experience, but found herself completely unable to move her hips.
Emma watched her pussy get wetter and wetter, but refused to give it the attention it wanted. Suddenly, all the hands disappeared back into the walls and Nat found herself aching for them to return. She noticed that the punishment round had ended. "This is only the beginning. I hope you're ready for round two. Can you survive 32 minutes with me tickling you? I doubt it. Removing restraints now."
Nat had honestly forgotten about the actual game and had to fight her urge to immediately finger herself when the restraints were removed, as she didn't want to lose another round so quickly. The 32 minute timer on the screen began and Nat waited to see what Emma would do now. More tools revealed themselves as Emma opened up more holes. This time, the tentacles appeared to have some kind of long tongue-like instruments at the end. Nat stared at the tongues wide eyed as four of them moved towards her legs and started a rapid flicking motion while slowly advancing. They were so close... Nat closed her eyes and couldn't hold back a smile, she could already imagine how amazing they would feel on her pu-
"HAAAHAAAHNOO NONONO P-PLEAAAAHAHAHASEE PLEASEEE" Nat became incomprehensible again as the tongues had chosen to land on her thighs instead, two on either side of her sex, and had began to lap on them hungrily. She hadn't expected them to feel warm and wet, just like those of a person, only these tongues were much stronger, more unforgiving and a lot, lot longer. The sensations would have felt heavenly on her pussy after how Emma had been teasing her, but on her thighs she was insanely ticklish and her reaction showed that. For Nat this was a different kind of heaven. Another tongue started licking around her belly button as the hands from earlier returned to their positions on her upper body and ravaged her sides and arms. But she was determined to stay completely still and take the tickling for as long as she could.
"Is th-thisaaahahaha is this the b-best you've go-OOOO-"
The tongues between Nat's legs slowly moved closer and closer to her pussy and moans started getting mixed into her insane laughter. After a few minutes the unrelenting tongues were barely an inch on either side of where she needed them most, right on the edges of her panties but refusing to go further.
"Mmmmm j-j-ustaaahahaha lickk m-me pllleheheheaseee- HAHAHAAAHAHA NOOO" Emma paid no attention to Nat's requests and instead tickled her even harder with the hands around her body, adding even more hands to attack her sides and thighs. When two more hands started exploring the exposed skin right above her panties, Nat went crazy and let out a scream as she twisted around to refuse access to one of her most ticklish spots, losing the round only 7 minutes in. The twisting action caused the tongues to very briefly accidentally lick directly on her womanhood, and Nat let out a huge moan as she bucked her hips up towards them. It was too late though - her waist was immediately pulled down to the ground and all of the tools retreated into the walls as once again she was completely restrained within 2 seconds of losing the round. Nat screamed out in frustration as she internally wished for the tongues to come back. She would soon find out that she should be careful what she wishes for.
"I get to punish you for 25 minutes now, and the next round is going to have a target of 60 minutes. Let's remove those panties, shall we?"