Day 16: Another night at the Aquarium [Costume Play]

Keywords: Suffocate/Space
Theme: Costume Play, Mermaid
Triggers: Mild Asphyxia
POV: 3rd person; multiple
Continuation Of: Day 12: A Night at the Aquarium (Highly recommended to read that one first)

Content Warning. Contains mild asphyxia as character is fighting for her breath in non-sexual way.

The feeling of being suffocated and loosing her breath as the re-breather went down her throat never went away. Gabby did manage to stop fighting so hard to stop it though. She no longer needed to be restrained for it. Taking deep breaths. One, two, three... Deep breath. Jaw opened wide. Moment of panic. Jumping into the aquarium and taking a deep breath under water.

Aquarium has become her safe space. A place to feel liberation from all her worries. The feeling of swimming with the fishes. Possibility to admire the corals from centimetres instead of from behind the thick layer of glass. That wonderful feeling of letting out the song under water. Sound waves echoing through the water.

They made tons of adjustments to the costume. It was now high waisted and ended right below the belly button. On the other hand it now featured strategically placed slit on her ass. Biggest disadvantage of the previous design was that if she needed to use the toilet she had to essentially finish the adventure. Now well, let's just say there were other options!

The costume changed a bit too, gloves were now full length, she didn't get a bra. Sure sea-shells were the canon, but they also felt like a foreign object, while with the suit as it was she felt that everything was "natural" and part of her body, part of her skin.

The excursions started getting longer and longer. She would float around in the water, or would lay on the bed of the sea grass for hours just to enter that amazing state of a clear mind and ultimate relaxation. She worked late shifts whenever she could now. She made her sister Abby take care of most of her actual duties in exchange for the opportunity to use her as a lab mermaid, while she enjoyed herself in the aquarium.

As for Abby - she long realised that any signs of **** were just a negotiation tactic but she let it slide. Deep down she knew that Gabby was obsessed with her mermaid tech. If she wanted she could have her sister as a maid and servant in exchange for allowing her to "test it". But she restrained herself and instead ended up working two jobs. One at bio-tech startup during the day, and aquarium manager at night. One the weekends she worked to enhance the suit and refactor the code, make it reliable and production ready. She wanted her own turn as a mermaid as well but Gabby wouldn't let her unless everything is in the tip top shape, auto-tested and with no possibility of failure...

It really was only a matter of time until they would get caught.

"How are you doing Gabby?" Martin's voice shook Abby who was sitting at her sister's desk organizing the management of the aquarium's shipping and receiving into the database interface she herself wrote during those long afternoons substituting for her twin.

"Good? And how are you ...?" she asked trying to steady her voice ... she wanted to add >Mark< but bit her tongue at the last second. What if she got the wrong name? Instant fail!

"Good good. I won't bother you boos, just need to clean the tank" he said preparing to leave your - well your sister's - office.

"What?" Abby shouted.

The man looked back shocked "I know I was supposed to do it tomorrow, but I sent you a text that I can't come in tomorrow!"

He might have. He would have sent it to Gabby's phone. Phone that was last checked before she went into the tank.

She tried to stop him, she really did, but every line she tried made him look at her stranger and stranger.

"Do you have a guy down here or something?" he finally asked "Why are you trying to get rid of me?"

And then he saw why. He saw Gabby chilling in the middle of the aquarium.

"What the FUCK?" he shouted before jumping jumping at Abby to restrain her, thinking she murdered her own sister.

"Waitt! You're hurting meeee!" she screamed.

The commotion woke Gabby up from her nap at the bottom of the ocean, she saw Marting struggling with Abby through the glass and swam to it and started bounding as hard as she could. Martin couldn't hear her through Abby's screams though. She tried to scream, putting all of her voice into it.

"Fuck!" Martin shouted once he finally incapacitated Abby and looked up to see what was making all of that noise.

"Relax, ok, be patient, she can't speak, but she will be able to once I remove re-breather ok?" Abby begged Martin who was still bit shaken by all of this.

"Oook..." he said carefully not really convinced. Thousands of thoughts were running through his head, leaving him completely stupefied.

Gabby surfaced her head out of the water and got close to the edge of the aquarium, her neck submerged as she did. Abby got close and reached forward to grab the conduits inside her mouth. She yanked the tube to the response of a painful moan and groan while it was leaving mermaid's throat. She coughed and sneezed a lot tears forming in her eyes. "Hem oge" she finally said in a deep raspy voice. "Hem oge" she repeated making sure he understood.

It took few minutes for Gabby to recover, during which Martin and Abby stood very awkwardly above her, while she held onto the edge of the aquarium with her webbed fins. "I'm ok Martin. This is Abby my twin sister. I'm fine... could you ... could you turn around and get me a towel?" she finally said.

Martin got red once her realised that he has been staring at almost naked woman entire time but didn't exactly know where to get towel from so he just turned back, giving Gabby's shapely and beautiful breasts one more discrete glance.

"So you're telling me you made artificial gills and a re-breather that makes it possible to breath under water??" he still couldn't believe what he heard.

They were sitting in the office. Gabby out of her suit and in a long warm robe she usually wore to warm herself up. Her athletic legs hidden in a pair of white fluffy socks.

"I thought there's not enough oxygen in water to provide enough oxygen?" Martin was still trying to grasp the concept.

"There's not, it's a re-breather kind of device, it filters out just CO2 and replaces it with O2 from water, that's the only way it could work, and that's why it kinda ... has to go inside the throat". Abby explained patiently.

"Amazing, it really is" he finally admitted.

The discussion went well into the night until he decided that he has to actually start working leaving the twins to their own devices. "I won't tell anyone. And ... we'll talk tomorrow, no wait, Friday"

"Ready?" the man said and waited for a final a-ok from Gabby before pushing the re-breather in. His hands were shaking but somehow he managed to get it right on the first try, then quickly followed up with plugging her nose. Beautiful mermaid threw herself backwards and fallen into the water.

"Now you. Ready?" he asked.

"Wait" Abby said once again trying to steady her breathing. She did this twice before, but the fear of suffocating was making her heart race every time. "Ready" she said and took in a big breath. Martin started pushing in the re-breather into her mouth but he hit the uvula and caused her to cough.

"One more try". This time it went without a hitch. He had some problems with nose plugs but within ten seconds he was done and he helped to push the second mermaid into the aquarium, then went to the console to monitor to check if all is all right.

The man was standing in front of the aquarium admiring two creatures almost out of this world dancing with each other with the angelic grace. Their long hair spread by waves and movement created dreamlike cloud. For him of course the best part was their magnificent shapely breasts on full display for him to enjoy. Their limber athletic bodies, so similar to each other, both perfect. From the tip of their heads to the end of their tails.

It was a sight to behold, and it was only his!