Marilyn opened the door and stepped inside. Right away, she saw Hope Marie lying naked in a large tub. She was secured spread-eagled to the bottom, soft cuffs attached to her wrists and ankles.
Marilyn walked over and looked down on her. With a smile of amusement she asked, “Another experiment, I presume?”
Hope Marie smiled up at her. “Dr. Crocker said I could try out his special water mixture.”
Marilyn nodded understandingly. “That must be why he sent me here to observe the procedure. He didn’t tell me you were the one who was going to do the drowning. I wonder if that’s why he said it would be ok if I came in here naked, knowing what happened the last time we were together.”
“I can’t wait!” Hope panted breathlessly. “He said this time I get to drown again and again and again.”
Marilyn frowned at that. “What do you mean? You mean all at once?”
“He said it’s a special mixture. I’m just dying to try it out.”
“Interesting choice of words,” Marilyn mused wryly. “Did he say how many times you could drown?”
“I want to go again and again. But he suggested I stop at three.”
Marilyn just shook her head. “Don’t tell me; let me guess. It’s the orgasms; isn’t it.”
Hope knowingly smiled up at her as she panted, “You wanna turn the water on for me? I’m sort of all tied up in here. You can tell I can’t reach the handle.”
Marilyn reached into the tub and curiously picked something up. She hefted it up for inspection as she asked, “What about this?”
Hope Marie looked at it and smiled. “Oh, that? Oh, yeah. I was kind of wondering where that went. Would you be so kind as to put it back inside me?”
“Oh, I’ll put it inside you, all right.”
Marilyn went over and turned the water on. Two pipes – one in the front of the container and one in back – immediately began spewing water into the tub. That’s when Hope Marie started wriggling excitedly.
Marilyn looked down on her with a growing sense of envy. “Aren’t you scared?”
“I’d be lying if I said I wasn’t. But I’m so horny right now, I could just burst.”
“Oh yeah; that’s right.” Then Marilyn lifted the toy up before observing, “You said you wanted this in you; didn’t you.”
Marilyn carefully pushed it into Hope Marie’s slit. But she was envious as hell. Why was this bitch being allowed to experiment with this new water solution instead of her?
The water quickly rose up until Hope Marie floated up off the bottom. But with her wrists and ankles secured, she couldn’t rise up very high. It gave her an erotic jolt of alarm.
She began gasping for breath as the water continued to rise. Then she took a last, deep breath before it rose up above her face. Moments later, she was fully submerged.
The water kept rising. But a sensor in the tub caused the pipes to shut off as it topped out less than an inch from the surface. Hope’s tits stuck up out of the water, along with a bit of her tummy and parts of her upper legs.
Marilyn saw Hope Marie struggling to hold her breath. She smiled as she reached in and cruelly activated the vibrator to its highest setting. Hope immediately appeared to writhe and bubble.
“What’s the matter?” Marilyn asked innocently as she started touching herself from the eroticism of it all. “You wanted it in your coochie, didn’t you? I assume that means you wanted it on the highest setting; am I right?”
Hope Marie wriggled and squirmed as she lost bubbles out of her mouth and nose. Her tits wriggled above the surface, her erect nipples exposed. It even looked like the toy was forcing a few air bubbles out of her womanhood.
Marilyn found herself becoming aroused at the thought of watching this woman drown right in front of her. “Happy drowning, bitch,” she murmured quietly. Then she bulged her cheeks as she held her breath right along with her.
Hope wriggled and writhed as she humped the buzzing toy inside her. Instinctively, she tried to rise up even more so she could get a breath. But her wrists and ankles were successfully tethered to the bottom of the tub.
Marilyn fingered her nipples and slit as she held her breath with the submerged woman. Hope Marie writhed and shuddered like crazy. Then she lost a huge burst of air that spewed up out of her mouth, bubbling to the surface.
Hope began gulping water as she hitched and jerked. She appeared to painfully spasm and convulse. Then the toy was squeezed out of her pussy.
Marilyn panted for breath as she felt a small orgasm ripple through her. That’s when Hope began to settle down in the tub. Marilyn reached for a control on the side of the tank.
The water drained quickly. But it looked to her like Hope’s chest was gently rising and falling. When the water lowered beyond her face, she began coughing up fluid.
Marilyn watched as Hope’s dazed pupils began to refocus. She coughed up more water until she was spewing less moisture out of her mouth. The blonde just shook her head.
“Back with us, are we?”
Hope sputtered, “I… I think so.”
“How was it?”
Hope coughed a couple more times. “Intense,” she rasped. “Gawd; that was intense!”
Marilyn smiled. Then she turned the water back on. It immediately began pumping into the tub.
Hope started to hyperventilate as it quickly climbed her body. She frantically filled her lungs. A couple seconds later, she was drifting upward again, although she could not lift her face up above the surface.
“You forgot your toy,” Marilyn remarked. Then she reached down and picked it up. But instead of reinserting it, she ran it over Hope Marie’s exposed nipples.
She smiled as she ran it back and forth over each one until Hope’s nipples were really protruding. “Oh yeah; you want it back inside, don’t you. My bad.”
Marilyn gently pushed down on Hope’s chest until the submerged woman was forced to the bottom of the tub. Then she slowly inserted the buzzing toy into the naked woman’s pussy. Hope instinctively clenched around it.
Marilyn gently thrust it in and out. She used her free hand to grope Hope’s boobs as she kept her fully submerged. Hope writhed and bubbled in agony, wincing as her cheeks bulged.
Marilyn made a show of bulging her own cheeks as she gently thrust the toy in and out. “Feel good?” she murmured. “Bet you won’t be able to hold your breath as long this time.”
Hope continued clenching around the buzzing toy inside her. Marilyn smiled wickedly at her as she pinched a nipple on the submerged woman. Hope let out a bubbly cry of pain.
Her chest began to heave, indicating she was running out of breath. A few air bubbles spurted out past her clenched lips. She looked like she was struggling not to inhale.
“My turn to have some fun,” Marilyn breathed. Then she began thrusting the toy harder and harder as she pinched Hope’s nipples again.
The submerged woman writhed and wriggled. Then she started losing bursts of air as she began humping. Marilyn brutally fucked her with the toy as she pinched a nipple just as hard as she could.
Hope cried out, humping and shuddering intensely. Then she started gulping water, sending her into paroxysms of agony. “Gawd; yeah!” Marilyn breathed excitedly.
Hope coughed and gulped, hitching and swallowing. Her face contorted from a mixture of pain and pleasure. She was clearly suffering despite the orgasms she craved.
Marilyn left the toy buzzing inside her as she gently groped and fondled both submerged breasts. Hope settled down until she was hardly trembling at all. Marilyn stopped groping her to drain the tub.
The water level lowered again until Hope’s face was exposed. Water soon began bubbling up out of her mouth. Hope coughed her airway open before going into a coughing spell.
She gasped, coughed and shuddered until she began breathing in a mostly normal manner. “How was that?” Marilyn wanted to know.
Hope took a ragged breath coughing a little to clean her lungs. Then she gasped, “That was even more intense, damn you! You did that on purpose!”
Marilyn clasped her chest. “Who, moi? Why, I’m hurt!” Then she went over and started the water again.
Hope Marie coughed and then gasped in alarm. “Hey, wait a minute! I haven’t even gotten my breath back yet!”
“You said you wanted to test this for Dr. Crocker, didn’t you?”
“Not so fast – not so fast! Marilyn; I’m not ready yet!”
“I think you are,” the nude blonde smirked as she reached down and checked on the buzzing vibrator. “The toy’s inside you and all ready to go. You’ve caught enough of your breath. Besides, I’m sure you’ve got a couple more orgasms ready to explode out of you as you drown for me.”
“Damnit, Marilyn! Wait, I… I’m not…”
“Doc said three times; right?”
“Yes, but…”
“Then three times it will be.”
Hope Marie gasped a moment before the water covered her face. That’s when Marilyn climbed into the tub with her. Hope looked up at her in alarm.
Marilyn stretched out on top of her. Then she submerged her face to kiss Hope. The anxious woman acted like she wasn’t sure what she should do, although she eventually returned the kiss.
Marilyn rubbed their boobs together as she kissed the test subject. Then she felt Hope’s chest start to heave. With a wicked grin, she suddenly inhaled, trying to suck out the last of Hope’s breath.
Hope lost it in a flurry of bubbles. Marilyn felt the woman begin to struggle beneath her. She lifted her head up out of the water and smiled before telling her, “Ok, you can drown for me now.”
Hope let out a bubbly cry. Then her lungs gave out. She coughed up a huge lungful of air toward the lowered face of her tormentor.
Marilyn submerged to look down on the drowning woman. She could tell Hope was shuddering in climax as she convulsed. It made her own orgasm pop off at the eroticism of it all.
Hope hitched and spasmed beneath her until she finally settled down. Marilyn sadly lifted herself up. Then she climbed out.
She quickly drained the tub. Then she watched Hope Marie. But the woman was not responding.
She began to get concerned. Then a bunch of water came bubbling up out of Hope’s mouth. She went into a coughing fit as she tried to clear her lungs of fluid.
Marilyn summoned a team from sickbay. They were on standby, and appeared in less than a minute. They soon had Hope out of the tub and strapped down to a gurney.
“Don’t forget this,” she told the guys as she hefted Hope’s buzzing dildo. They just frowned at her before wheeling Hope out. Marilyn smiled as she looked at the toy, wondering if they should get to know each other better for the next couple of hours.
5-28-24 Inspired by Oldojmo’s render.