The arousal was a good thing because it let him relax and stay calm despite his oxygen steadily running out. But sooner or later reality hits. He felt his enthusiasm slowly start fighting with his sense of survival. For the second time he was painfully aware of how helpless he was to move in any way. He felt both excited and terrified at how Regret was sitting so causally, and for so long. It seemed like she was determined to show him the restraining capabilities of the smotherbox. She was quite a convincing salesperson, he mused to himself while slowly slipping into panic. It was everything he could do to not lose his cool completely and start screaming. But he still felt himself making small yelps to get Regret's attention.
"Oy vey! I see you're really getting into it! Authentic struggle noises and all! See, I told you this was top of the line." Regret said from above as Harry tried to shake his head sideways in vain. The smotherbox was really doing its job, as Harry couldn't do anything to make her get up. Without getting up, she reached over to the handcuffs holding his arms in place and tapped it loudly saying, "The previous model used a lightweight polymer her but it kept getting broken off when shit started getting serious. So now they went back to using good old steel. Try breaking that right?"
As cute as her sales pitch was, Harry just wanted to breathe now. His struggles started becoming a bit more violent, but Regret was determined to show him the how good the smotherbox was. She was fighting him to make sure he couldn't sneak any breaths in.
"Woah easy there! Settle! I'm trying to sit here. I thought you've done this before. Why would you buy a smotherbox if you can't even hold your breath for 30 seconds? Stay still!" she said accusingly from above. Harry just made a long pleading moan. This woman was overestimating his limits. He had no one else but himself to blame for that.
However, he didn't want to be outed at this point after using his lies to get Regret to sit on him. So he used whatever willpower he had to lie still so that Regret wouldn't call his bluff. Plus her demand that he lie still made him ever more aroused. It was a miracle that he hadn't creamed his pants already. He wanted to reach over and at least massage his penis so that he wouldn't end up having a wasted orgasm.
Luckily she got up soon, letting him grab grateful mouthfuls of air. She turned her head back without turning her body back, and looked at him with a bland expression on her face.
Seeing her butt and her face in the same frame - with the intent to possibly sit back down - made Harry more aroused than he had been all evening. She looked so nonchalant despite doing something so intimate - and terrifying - with him. "Have you really done this before? Are you ok? Should I just stop?" she asked him with a scowl. Her earlier bubbliness had gone. But Harry focused more on what she said about stopping. There was an option where she didn't stop?
"No no I'm just nervous. I.. I've just never been tied down like this before" Harry said, adding some truth to his lies. He wanted to milk this opportunity and keep her sitting as long as he could. As afraid as he was at the situation, seeing her butt just inches from his face made him want nothing more than to have it back on his face.
"That makes sense I guess. Well don't worry, ok? I won't hurt you. I'll give you 5 more minutes and then I'll let you go. " Regret assured him. The way she said 'let him go' made him feel like her captive at the moment, he realized as he felt himself get even harder if that was even possible. He got taken aback when Regret plopped herself back on his face, once again without any further warning. He tried to turn his head away instinctively but the smotherbox held it in place. He closed his eyes and clenched his face to meet the incoming ass. Her jeans crashed painfully on his nose again as she sat down. He let out a yelp of pain, unable to control himself.
"Oops sorry, that was a bit rough, I didn't mean to do it that hard. Are you ok? You won't call the manager, right?" Regret asked hesitantly from above him. He didn't know how she expected him to respond while she was still sitting on him. Harry moaned twice to let her know it was fine, his head pounding from the butt drop. "Good." Regret said contently.
Harry could feel her hum a tune a as she sat on him, the vibrations traveling down through her butt and on to his face. "Oh wait check this out!" she remarked suddenly as she reached down and pressed the height adjust button on the smotherbox. Harry suddenly felt gears churning with difficulty all around as he felt his head be pushed up even higher.
Since Regret was still sitting on him, this had no visible effect except to shove his face deeper into her jean-bound ass. But he could feel his face get bruised as it kept pushing his head higher. He moaned in pain to make her stop, but Regret kept pressing the button until her butt was lifted clean off the smotherbench. It was only about a millimeter of separation but now her entire weight was on his face. Harry didn't realize that he was having it 'easy' until then.
After another minute Regret got up. "Well what do you think so far? You look like you're in pain?" she asked quizzingly seeing Harry's painful expression as she got off.
"It's not the smotherbench, its just... your jeans are hurting my face" Harry said honestly.
"Oh. Well... I don't exactly have a change of clothes here.... Oh I know. I'll show you another feature!" Regret said gleefully and lifted up a thin latex flap that was hanging off the side of the box. "Woah hey what?" Harry protested. "Just relax, you'll be fine. I'll take care of you...", she said sweetly as she proceeded to lay it over Harry's face gently despite his verbal protests. Didn't she know 'no means no'?
She zipped it on all three edges. The flap was maybe quarter of an inch thick, and stuck to his face where it touched it. It was completely opaque and he couldn't see outside. He felt like he was in an isolation chamber. Outside noises were heavily muffled although could hear his own panicked breaths, resounding over the piece of latex as if it was a drumskin. The complete lack of his sense made him feel panicked in a way he hadn't felt before.
"Ok so this should stop most of the pain" Regret said matter-of-factly and sat down on him to prove her point. Harry of course couldn't see anything or even rightly hear what she had said. So her weight crashing down on his face took him by surprise. But she was right. While her weight was still as heavy as before, this didn't hurt his face as much as earlier since her rough jeans weren't eroding his face's skin cells like earlier. Moreover, having her weight on his face actually made him calm down. It was - by now - a known quantity, unlike the sensationless void he was trapped in otherwise.
"See you're fine now! I can even bounce a bit!" Regret said and went on to prove her point, bouncing somewhat roughly on his face. Harry could feel her weight painfully pounding his face flat, but the impact itself didn't hurt that much. Still he wished that she would treat his face more gently.
"And here's a pro-tip. If your girl keeps a bit of the flap unzipped..." she paused to unzip part of the latex membrane. "...and rock around a little bit...", she continued as she rocked her butt left and right on his face, "... you can get all that pesky air out!" she finished. She reached over to zip the corner back again. Harry was suprised at what that did. It squeezed out all the reserve air he had in that latex deathtrap, and left him sucking latex into his mouth when he tried to sneak in some air.
"See, now you are trapped in a pseudo-vacuum. They came up with this feature to better compete with those dumb vacuum pads which supposedly, allowed for a better smother", she rolled her eyes, although Harry of course couldn't see it.
Regret was a restless sitter. She kept budging and leaning as she kept sitting. The only constant was that she never took his weight off his face.
She soon got up - sooner than normal Harry noted. But to his shock, he found that the flap was still stuck to his face. Worse, it had flattened and stuck to the seat around him. He could only breathe whatever air he just exhaled. In a panic he tried to tell Regret to take off the flap. But before he could do it, she had sat back down, surprising him yet again.
Harry cursed internally as he went back under her without fresh air in his lungs. But once again he had to hold his breath until she felt it was time to get up. He found that he was reaching his limit a lot faster, now that he just had recycled air. But Regret either seemed oblivious, or was still demonstrating the efficiency of the feature. Luckily, she did notice that he had been struggling continuously for a while now. She got up and saw how his face was stuck clean to the latex, desperately trying to breathe.