At the underwater research laboratory, Doctor Crocker spent some time working on breathable water, or what they called “liquid breathing”. It had been used on animals with limited success. Now we were trying to develop it for humans.
Naturally, Jenna and Briana wanted to be the first ones to try it out. But Dr. Crocker was concerned over how much damage their lungs had already taken during all their previous experiments. For the moment, he was unwilling to use them as test subjects.
Of course, they were both disappointed. But we compromised by allowing them to play a small role in our next experiment. They called it “the spa treatment”.
This involved two special chairs that were designed with fucking machines attached to the end. The test subject was to be strapped down, her legs spread and secured. Their arms were also secured, although a remote was in their hands to operate the fucking machine.
The chairs were set up in a special chamber that was to be flooded with the water solution we were experimenting with. Jenna and Briana again begged to be the first ones to test out both the water solution as well as the chairs they’d helped to design. But Dr. Crocker was adamant they would not be involved in the test.
As it turned out, we already had plenty of other test subjects who’d volunteered. Naturally, we warned them of the potential dangers. But when they saw the design of the chairs we intended to use, they were more than eager to accept the risks.
On the day of the test, we decided on Naomi and Angelina. Both were eager, if not persistent. It soon became apparent Jenna and Briana had previously regaled them with stories of the many intense orgasms they had experienced as test subjects.
On the day of the test, Jenna and Briana were both naked. They were allowed to participate by escorting our nude test subjects into the tank. Briana locked in the blonde haired Naomi into the chair on the left side, while Jenna went about securing Angelina.
Both girls were quite handsy with our test subjects. I told them to be professional, as Janet Wamsley was not here to assist like she normally did. “Janet doesn’t like girls so much,” Briana chuckled as she groped Naomi while strapping her in. “But we do, doc! So I’m going to enjoy myself!”
“That’s right, doc; we both do,” Jenna added with a nod as she secured Angelina to her chair while groping and fondling her.
When they were properly secured, my fill-in assistants took their sweet time inserting the dildos into our test subjects. “Gawd!” Naomi panted when hers was inserted and adjusted. “I’m horny already! I might cum before we even get this damn experiment started!”
“You’re gonna love it!” Briana assured her. “I’m jealous as hell we’re not being allowed to test it out first. But rest assured, we plan on convincing Dr. Crocker to allow us to go for a ride in the very near future.”
“Fuck!” Angelina panted as her dildo was inserted into her womanhood before being adjusted. “I’m horny too! But now I’m starting to get a little nervous. I’ve never drowned before.”
“Well, you will and you won’t,” Jenna explained to her. “Your lungs are gonna flood; that’s for sure. But soon, you’ll be breathing water while the chair fucks you and fucks you.”
“Isn’t that right, Doc?” she called over her shoulder to me on the other side of the glass as I made adjustments to my controls.
“Jenna is correct,” I called back to both ladies in the tank. “At least that’s the plan.”
“Got your hand on the remote?” Briana asked Naomi.
In response, the test subject must have flicked a control. That’s when it started to thrust in and out of her. “Gawd; I’m super horny now!” she declared. “And we’re both going to be submerged and have to hold our breath?”
“Most of the time,” I called back. “I might do some preliminary tests before we get into the main part of the experiment.”
“I think I’m ready,” Angelina nervously panted. “Although… gawd; I don’t really know about this!”
“Hold up the experiment, doc, while I change places with Angelina!”
“No you’re not, Jenna!” I called back.
“No you’re not,” Angelina agreed as she looked up at her nude assistant. “Despite my reservations, I really wanna go through with this.”
I made sure everything was ready. Then I called out, “Ok, girls! Out of the tank!”
“Oh, Doc! Can’t we stay in here and play with them?”
“Out, Briana; out!”
“Ok – ok; we’re going!” Jenna declared unhappily.
The two fill-in assistants left the tank before sealing the door shut behind them. Then they came around to watch. I stood at the controls, ready to flood the chamber.
“Drown ‘em, doc!” Briana gasped excitedly.
“I heard that!” Angelina hollered back. Jenna just chuckled.
I turned on the water and began flooding the chamber. But I stopped the water when it reached their chins. Both of them seemed to be experimenting with how hard they wanted their machines to fuck them.
“Ok, ladies!” I called out to the two in the tank. “I’m starting you with a short breath-hold just to get you both used to it.” Then I resumed the water flow.
The test subjects both gasped, inhaling sharply before the water level rose above them. Naomi immediately turned on her fucking machine a little faster. Angelina looked like she was going for a steady fuck.
They both bubbled until I dropped the water level back down below their chins after a minute of them being totally submerged. They gasped for breath, none the worse for wear. “Fuck, doc; that was intense!” Naomi panted.
Her partner seemed unsure or distracted about something. So I called out, “You ok in there, Angelina?”
“I’m ready, doc!” She didn’t sound ready. But I took her at her word.
“Drown ‘em, doc!” Jenna panted excitedly as Briana chuckled.
“I heard that!” Angelina gasped again. I just shook my head as I increased the water level.
They inhaled deeply before it rose up above their heads again. “Two minutes, girls!” I said into the microphone in case they had a harder time hearing underwater. Naomi nodded as she fucked herself with her machine. Angelina appeared to be concentrating on something.
Naomi soon climaxed, which obviously aroused both Jenna and Briana. That’s when I understood why they had insisted on going nude while assisting me. Both were subconsciously rubbing themselves while squirming with delight.
Angelina seemed to be fighting with herself as she struggled to hold her breath. I finally lowered the water after two minutes. When the level dropped back down, she panted loudly for breath as Naomi gasped out, “Fuck; that was good!”
“It’ll get better once your lungs flood!” Briana called out to her. Angelina just frowned at that.
“Ready, girls?” I called out. “This is it! But I’m only going to keep you submerged for a short time after you both drown.”
“I’m ready for it, doc!” Naomi panted excitedly.
I turned to her companion and called out, “What about you, Angelina?”
“Whenever you’re ready, doc.”
“Yeah, but are YOU ready?”
“I will be.”
Jenna called out to her, “I’ll substitute for you, Angelina, if you want me to!”
“No, Jenna; I’m good!”
I just smiled as I called out, “Ok, ladies! Here we go!”
“Drown ‘em, doc!” That’s when Briana looked at Jenna and grinned wickedly at her remark.
I elevated the water level inside the tank to a point above their heads. Both ladies took deep breaths, holding the last one before they were submerged. Then I stopped the flow above their heads.
I watched as Naomi increased the action on her fucking machine. Clearly she wanted another orgasm. She really seemed to be enjoying the pleasure of holding her breath while being fucked.
Angelina concentrated on her fucking machine too. But she had a different expression on her face. I didn’t know if she was trying to blot out the thought she was about to inhale water, or if she was merely trying to focus on her pleasure. Either way, she looked a little concerned.
Naomi went right into her second orgasm, bubbling while crying out. Angelina just focused on holding her breath. They soon reached the point where both chests were rippling as both women struggled to keep the last of their air inside their lungs.
Naomi went first, losing her breath in a massive burst of bubbles. Then she began violently cumming and drowning. She appeared to fight it all the way, thrashing about as she struggled tightly secured to her chair.
Angelina inhaled unwillingly in a gulp of bubbles. But she appeared to fight her drowning less violently. She climaxed as she hitched and gurgled until she settled down.
“Fuck!” Briana panted as she rubbed herself. “That is so fuckin’ hot! I wish that was me in there!”
“Gawd; me too!” Jenna panted.
I kept both girls submerged like that for a couple minutes. There wasn’t much movement on their part. But it was obvious they were still breathing, although their chests were heaving noticeably.
I dropped the water level back down to below their chins. When their heads emerged, they both went into coughing fits. That’s when they spewed up a lot of water from their lungs.
“It’ll pass!” Briana called out to them encouragingly. “Jenna and I know exactly what you’re experiencing! Just keep breathing; it’ll pass!”
“You two doing ok in there?” I saw both women nod their heads But now they both looked unsure of themselves.
Naomi and Angelina seemed to be having a little trouble after having gone through their first drowning. I told myself I could either stop the experiment or I could carry it through to completion. I hesitated a moment before calling out, “Ok! Round two!” Then I started elevating the water level again inside the chamber.
They both inhaled deeply before they were submerged. But this time I let the water rise all the way up to the ceiling. After all, we had to test them in a full tank of water anyway.
“Now he’s REALLY gonna drown ‘em!” Jenna breathed rapturously.
They struggled to hold their breath. But the shock of inhaling water had diminished their capacity for a long breath-hold. Their chests soon began heaving as they both lost bubbles out of their mouths.
“Here it comes,” Jenna murmured as she touched herself all over.
“Gawd!” Briana breathed, staring intently at them through the glass.
Both volunteers coughed up bubbles at almost the same time. Then they immediately went into drowning spasms. They hitched and gurgled in their chairs, inhaling and shuddering as the fucking machines forced orgasms out of their naked bodies.
“Gawd; just look at ‘em!” Briana panted as she furiously masturbated. “And they’re both cumming too! I sure know what that feels like!”
“So fucking hot!” Jenna agreed. “Wish it was me in there with ‘em!”
Naomi fought her drowning as Angelina went right into hers with grim determination. Then they appeared to settle down. It looked like they were both breathing heavily, judging by the way I saw their chests rise and fall
I could see their bodies working double-time to extract the oxygen out of the water in their lungs. Naomi’s look of anxiety finally began to diminish. A moment later, she had an expression of pleasure in her expression.
Her machine began fucking her harder and faster. Obviously she had increased the intensity of the experience. Her features took on a look of bliss as she furiously fucked herself until she was climaxing again and again.
Angelina appeared to be concentrating. Then she began jerking against the machine as though she was cumming. She was really focused on her pleasure.
Both women spewed bubbles out of their mouths. Even the drains were releasing some air. It was quite the sight inside the tank.
“Gawd!” Briana whimpered as she peaked from an orgasm of her own. “That is so incredibly hot!”
“Fuck!” Jenna added as she winced with pleasure. “Fuck – fuck – fuck; I wish that was me in there!”
After five minutes, I dropped the water level in the tank. It came back down until it once more rested below their chins. Both of them spewed up lungfuls of water until they began coughing and breathing again as they powered their fucking machines down to a gentle thrusting.
I noticed they both looked a little dazed from the experience. My fill-in assistants noticed it too. “You two all right in there?” Briana called out.
Naomi nodded in the affirmative. I half-expected Angelina to bail. But she also nodded she was all right.
“We can do one more test!” I called out to them both. “Unless, of course, you don’t wish to continue! Naomi, are you done for now?” She just shook her head, indicating she was ok to continue.
“Angelina, do you want to quit?” She also shook her head.
“You girls wanna go on the ride of your lives?”
I turned and frowned at Briana over her remark. But I saw both test subjects nod in the affirmative inside the tank. I guess that meant they were willing to continue.
“Drown ‘em again, doc!” Jenna gasped enthusiastically.
“Yeah; drown ‘em both!” Briana panted excitedly.
“Hang on, ladies!” I called out as I activated the controls. “Here comes the water!”
They both inhaled deeply. A moment later, the water rose above their heads. It kept filling the tank until it went all the way up to the ceiling.
I stared intently, wondering if I was the only one who’d noticed. But apparently my nude fill-in assistants had seen it too. That’s when Jenna panted, “Is it just me? Or did they just increase the power on their fucking machines?”
“I think they did,” Briana agreed with her, growing excitement in her voice.
Bubbles came out of their mouths as they writhed with pleasure. Then Naomi started bucking and cumming. She writhed and bubbled as her chest heaved.
Angelina had a faraway look in her eyes as she rode her machine. Her nipples were incredibly hard as she bubbled her breath away. Then she jerked and shuddered as though having just been hit with a jolt of electricity.
Both test subjects writhed and bubbled in their chairs. Jenna and Briana furiously masturbated. My cock was hard as a rock.
Naomi went off first, writhing and shuddering in climax. Then she spasmed as she inhaled. A moment later, she was furiously inhaling water as her body hitched and convulsed in the throes of orgasmic drowning.
“Fuck!” Briana panted as she climaxed right along with her.
Angelina suddenly went off a few moments later, inhaling water while cumming violently. She furiously impaled herself upon her fucking machine as she hitched and gurgled. She looked like a woman actively trying to achieve one last orgasm before being executed.
I kept track of the time as I hit a switch, summoning the orderlies electronically. They had already been notified there would be an underwater experiment. So they knew I would signal them to open the door and release the two girls from their machines once the chamber was drained.
Both girls seemed to settle down from their drownings. I could see their chests rising and falling inside the chamber. Jenna and Briana appeared to be mesmerized at the sight.
Naomi appeared to stiffen. Then she bubbled as she began to orgasm again in her chair. I couldn’t tell whether or not she’d increased the power on her fucking machine. But Jenna quietly observed how it looked like Naomi had consciously increased the intensity of her chair.
Angelina suddenly arched her back. Bubbles came out of her mouth. Then she started shuddering in her chair until she was bucking and thrashing about.
“Gawd!” Briana breathed rapturously as she furiously masturbated. “It looks like Angelina’s cumming again!”
“Cumming AND drowning!” Jenna corrected her. “Fuck; that’s hot!”
Naomi suddenly caught up to her companion, bucking and thrashing about until they both appeared to be drowning for a second time. They were both spewing bubbles out of their mouths. “Doc, I’m next!” Jenna cried out before she let out a clipped cry of orgasm, with Briana cumming beside her.
I decided that was far enough to take our two test subjects. I had not anticipated their bodies would “drown” twice. So I turned off both fucking machines as I dropped the water level.
It had barely finished draining in the chamber when the door opened. Four orderlies burst in and immediately began working to free them from their chairs. Naomi and Angelina barely moved.
Both began spewing water out of their mouths. Two orderlies wasted no time hooking devices up to their faces to feed them oxygen while extracting the liquid out of their lungs. They had both begun to stir when each one was carried out and placed onto stretchers in the hallway I could just make out through the door the orderlies had come through.
“Show’s over,” Jenna observed sadly. Then she looked at me before cheerfully asking, “Doc, would you care to fuck-drown me? I’m super horny right now.”
“He’s doing me first,” Briana interrupted.
“No time,” I told them. “I’m going to sickbay once I’ve been summoned.”
“Spoilsport!” Jenna pouted. It was only another minute or two before I got word to report to sickbay.
—
Both test subjects were able to give an oral report before their memories began to blur. They confirmed they had both seemingly “drowned” again. They had not stopped breathing, but their bodies had certainly reacted as though that had been the issue.
Both also confessed to experiencing intense orgasms at the moment they had drowned for a second time. They indicated it was hard to remember much after that. So I decided not to push them, figuring I already had a lot of readings that would help fill in all the missing data.
I was barely out of their room when Jenna and Briana cornered me. They both wanted to go for a ride in those chairs. They’d heard about the orgasms experienced by Naomi and Angelina, and wanted to experience them for themselves.
They both begged and pleaded with me to run them through a similar set of tests. I told them I was concerned about any damage their lungs might have sustained up to that point. Jenna told me she didn’t care. She wanted to cum, drown, cum, drown… and then cum again, just like our last two test subjects. Briana was equally enthusiastic.
I told the girls I could not agree to anything. But I would pass on their wishes to Dr. Crocker. However, I suspect they’re going to get to him first and beg him to allow me to run them through their paces in that chamber.
They are certainly insistent about wanting to experience a little “spa treatment” for themselves…
7/25/25 Inspired by my URL stories and the OLDOJMO render.