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First off Niki is not an exhibitionist, he swears. However he had to admit there was a certain thrill of getting frisky in the lab. He would have preferred the door to be locked at least, but Nanami seemed insistent on having that "element of danger."
The metal door against his burning skin made Niki jump. His whole body felt on fire. Footsteps echoed from the other side of the door. He bit his lips as he tried to hold in his voice. He covered his mouth with the hand that wasn't holding Nanami's shoulder in a death grip.
The blond continued steadily bobbing his head, staring up at his lover with lust filled hooded eyes. Niki's legs were shaking, he had reached his limit along time ago, but somehow Nanami has managed to keep him from just getting over the edge.
"N-nanami..please..I..ah!" He could feel a strand of saliva drip from the corner of his lips. Nanami just hummed in response, sending a shiver through Niki.
"B-bastard stop...e-..enjoying yourself..." he was losing his mind and all the strength in his body. If not for Nanami holding him up, Niki would have probably become a puddle on the floor.
"And your not?" Nanami pulled off with an audible wet pop.
"....Just hurry up, I don't want that bastards to see this," Niki tries to glare, but he could muster the energy to, "when you said do something to take our minds off this god awful task, I thought it would like a quick makeout or something you dick." Niki mumbled to himself.
"Do you want me to stop or not, sweetie?" Nanami smiled, finger running over the tip of Niki's dick, causing the latter to yelp.
"You-"
"Ichiya, you okay in there?" Akito's voice cut through the air. He was fucked, Niki was fucked. He can't let his god damn brother-in-law find him like this. He wouldn't be able to show his face around the Iride house anymore.
"Y-yeah, nothing's wrong!" He tried to sound as normal and calm as possible.
"Some the others heard cursing and a loud bang, so I wanted to check on you two." Akito sounded genuinely concerned and Niki swore he would murder Nanami for this.
"W-well uh it's-" he felt the heat of Nanami's lips on him again, "I-ah!" He bit his lip so hard he could taste blood. Nanami dead, for sure.
"Are you okay? I'm coming in, okay?" Niki heard the door handle turn and pushed himself against the door.
"Answer him." Nanami was so quiet Niki could barely hear him.
"Dick," Niki whispered before turning his head toward the door, "D-don't something uh...f-..fell so we're..cleaning it u-ah..up."
"I see, are either of you two injured?" As much as Niki loved how caring his brother in law was, it was great that he could trust him to treat Yukako right, at times like this he wished Akito could leave well enough alone.
"Y-yeah just...d..don't open the door." Niki was losing it trying to him even a modicum of composure and the way Nanami moved his tongue was not helping.
"Akito-sama I think we should..leave them be." God damn it of course Hakamori was here. He was grateful that he would get Akito off Niki's hands, but he knew he had been discovered.
"Well if you believe it's fine then I guess that's okay. Be careful in your cleaning you two!" Akito said cheerfully as he walked away.
"Will do!" Nanami cheerfully, as he continued to blow Niki.
"Fuck!" Whatever restraint Niki had went out the window as he gripped Nanami's head and pushed himself further into Nanami's mouth. He continued thrusting into the blond as he road out his orgasm. The metal door creaked as he slip to the floor, legs no longer capable of supporting him.
"For someone who complained the entire time, that sure felt like you enjoyed it." Nanami licked his lips.
"Don't touch me for a month." Niki rested his head against the door as he zipped his pants.
"Aww don't be like that, we both know that come night you'll be snuggled up in my arms." Nanami smiled.
"Maybe, but have fun trying to go to bed when you have to do all the reports by yourself." Niki watched the color drain from his face.
"W-wait Niki, I'm sorry, y-you wouldn't leave me to die like that would you." Nanami's face was full of fear and betrayal.
"Hope with was worth it sweetheart." Niki smiled as he stood up, finally gaining some strength in his legs, he was pretty sure he could hear Nanami shattering into piece and honestly he hadn't felt more proud of himself in his whole life.