Daisy walked into the Special Advisors' locker room, frozen to the bone.
She had just returned from a mission in the freezing rain that had been nothing less than a complete disaster, and all she wanted to do was warm up and feel more like an inhuman than an inpopsicle. Looking around the empty room, she heard one shower running, and an English giggle that could only belong to the Special Advisor to the Director in Science and Technology. And wherever Simmons was giggling, Fitz was bound to be as well, making her giggle. So she walked over to the door of the shower they were in, and cracked it open, peaking her head around the door.
Seeing clothes on the bench that she definitely recognized as FitzSimmons', she asked the shower curtain separating her from the naked pair of scientists, "Can I come in? I'm freezing."
A second later Simmons' head popped out from around the side of the curtain furthest from the shower head.
"Hi, Daisy. What's up?"
Meanwhile, on the other side of the shower under the shower head, Fitz's head appeared around that side of the curtain, staring at the inhuman in surprise for even opening the door to their shower, let alone asking to come in.
"In here" — he waved his arm to signify the space between the curtain and the door Daisy was looking around — "or in the shower? Not that either makes sense."
"Shower — this room isn't any warmer than the rest of the locker room, or base for that matter," answered Daisy.
As Fitz stared at her in even more shock, Simmons said, "There are four open shower stalls with hot water. Why ours?"
"Yours has body heat as well as water heat," answered Daisy.
Simmons tilted her head to the side for a second, thinking, before shrugging and saying, "Sure," and disappearing back behind the curtain again. Fitz's head immediately disappeared as well.
On the shower side of the curtain, Fitz stared at Simmons in shock. He opened his mouth both to gawk at her, and when his brain reengaged to ask her what the hell she was doing, but she pressed a finger against his lips. Once she was sure he wouldn't ask silly questions, she moved him so he was facing the stream but slightly to the side of it, before getting down on her knees and taking his dick in her mouth and beginning to suck. As Fitz redirected his shocked staring from her telling Daisy that she could join them in the shower to her giving him a blowjob when Daisy was about to join them in the shower, on the other side of the curtain they heard Daisy slip into the room and close the door behind her, before unzipping her catsuit and pushing it off of her and onto the floor with a soft thump.
A few seconds later, once she'd rid herself of her sports bra and underwear as well, the inpopsicle pulled the curtain back just enough to slip into the shower on the side she'd seen Jemma on, where she found herself staring at Fitz's back and shapely bum. She quickly looked to find Simmons as well, who should have been right there, before spotting the English girl on the other side of Fitz, her head at crotch-level, the Scottish engineer's cock deep down her throat. She went slightly wide-eyed for a second before just shrugging, since the girl currently occupied sucking a dick had been the one to invite her into the shower in the first place, and stepped into the stream of hot water right next to Fitz, hugging him from the side, fulling pressing the front of her naked body into his side to get the body heat she'd mentioned when she first asked to come in. After a shiver Daisy wasn't sure if was from Simmons' ministrations around his dick or her ice cold breasts pressing against his heated skin, Fitz pulled his arm out from between them to wrap around Daisy's back to pull her more firmly into his side.
"You weren't kidding when you said you were cold," he commented as he squeezed her ass lightly. "Almost as cold as Jemma's hands."
"You probably shouldn't make fun of the girl who currently has your cock in her mouth," mumbled Daisy, leaning her head on Fitz's shoulder and closing her eyes, as she let the hot water continue to wash over her and the heat from Fitz's body flow into her. "Dangerous place to be."
Simmons released Fitz's dick with a lewd pop and said, "It's running joke from our first time having sex in Bucharest, when they felt like little ice buckets — I don't mind in the least," before resuming her oral pleasuring of Fitz's penis with even more lewd slurping sounds that were making Daisy heat up in ways besides just the hot water pelting her skin and Fitz's warm body pressed against her.
A minute later, Daisy felt Fitz shake through his climax, and opened her eyes just enough to see Simmons pulling her mouth off of Fitz's member, swallowing down the last of his load.
"Didn't know you'd be a swallower," she commented to the English girl.
"Fitz's licks up everything that comes out of my vagina, the least I can do is return the favor," replied Simmons. "Anyway, I don't mind the taste, and it avoids any clean-up issues — both on the shower floor or bed sheets depending on where we are, and on whatever part of my body he would come on instead. Now be quiet, we're not done with you yet. And Fitz, front to Daisy's back and face her directly into the stream."
Daisy let Fitz move her into the new position, enjoying the steaming hot water pelting against her breasts and stomach, and the feel of Fitz's slightly muscular chest and for the moment softening cock pressed against her back and ass. But to her surprise, Simmons didn't stand up to join them, instead turning slightly on her knees to be face-to-face with Daisy's sex.
As it dawned on Daisy what the older girl was about to do, Simmons said, "I think we can warm you up in more than one way."
The next moment, Simmons had her head buried between Daisy's legs, her highly skilled tongue lathering Daisy's most sensitive parts. Daisy would have collapsed then and there from the sensations if Fitz hadn't been behind her holding her up with his hands wrapped around her stomach, and nearly still did a few seconds later when Fitz slid his hands up to abuse her breasts and nipples with his long, nimble fingers and hands that were the exact size to palm her breasts perfectly when they weren't squeezing, pinching, and groping.
In an embarrassingly short amount of time, especially considering it was a girl between her legs, who understood that girls took pride in taking a while before they came even if they could orgasm multiple times in a row, she was violently shaking through her release, and even more embarrassing than that, squirting right into Simmons' face that the older girl still had buried in Daisy's cunt. But the biochemist didn't seem to mind in the least, as after she'd coaxed the last waves of pleasure out of the now much warmer inhuman, she leaned back on her knees with a bright grin on her face, looking up at Daisy like the cat that'd got the cream — which technically wasn't exactly inaccurate, even if it was a different type of cream than the cat got in the saying.
"Warm?" she said in a tone that was so proud of herself that at the moment in her post-orgasm hazy bliss, Daisy thought it should be criminal.
"Fuck off."
"Gladly, but you'll have to let me in between you and Fitzy for me to do that," Simmons smirked as she stood up and lightly brushed her fingertips across Daisy's breasts, since Fitz had moved his hands from her breasts down to her waist again to keep her upright after she'd finished coming. "And then turn around to face me, and let your back be warmed up by the water for a while."
Daisy's eyes widened as she realized Simmons was actually going to have Fitz fuck her from behind right in front of her. But as they were already way past normal appropriate behavior between senior Shield members as it was, and the idea turned her on way more than she wanted to acknowledge, she stepped slightly away from Fitz, letting Simmons slide into the spot she'd just been in, before deciding to go all in and flatten her entire front against Simmons' front, smushing their boobs together, hardened nipples poking into the soft skin of each other's breasts, the two girls slightly too height-different for their nipples to press directly into each other. She also buried her face into Simmons' neck, stretching her arms around Fitz's back as she felt one of his reach around to hold onto her back, pinning Simmons between them.
The other he must have been using to line his dick up with Simmons' slit, as a second later she felt as much as heard Simmons let out a deep moan, and the next second Fitz's other hand join the first one already around Daisy's back so he could slowly pull himself as deep into Simmons as he could go.
Daisy didn't think she had ever heard anything more erotic than the sounds Simmons made as Fitz's cock slowly skewered her from behind as the older girl pushed her chest out into Daisy's, who did everything she could to make sure every inch of their skin was in almost brutal contact. But if she had thought that was good, it was nothing compared to a few seconds later when Fitz began rocking in and out of Simmons, causing Simmons and Daisy's breasts to rub against each other, and their clits to occasionally brush against one another, as far forward as Simmons' hips were being pushed by Fitz's powerful thrusts.
Daisy quickly adjusted her position slightly to increase the frequency of their engorged nubs colliding, aided by Fitz picking up the pace until he was practically pounding into Simmons from behind. It wasn't long before Daisy could hear Simmons' impending orgasm in the English girl's moans, and to Daisy's great surprise, she realized that she was right on the edge of a second orgasm as well just from the breast and clitoral stimulation she was getting from being pressed so thoroughly against Simmons. When they came a minute later, they all three came in unison, letting out a combined cry that when she thought back on it later, she really hoped hadn't carried through the entire base, especially to Coulson's office — she would never hear the end of it if he knew she'd came like that with the science duo.
They remained intertwined like they were for several minutes, Fitz and Daisy both worried that they might all fall to the shower floor if any of them moved yet, and Simmons sure she couldn't stand on her own jello legs at the moment. But eventually they did slowly and carefully extract themselves from one another, Fitz quite literally extracting himself from Simmons' warm, tight, and now full insides.
"That was —" gasped Daisy.
"Amazing," finished Simmons. "And I know Fitz enjoyed it too, as I don't think I've ever felt him fill me up with so much cum as he just did. I'm going to have cum leaking out of me for days — or at least until he licks it all out of me the next time he eats me out."
"I don't know how you can even be thinking about having sex again so soon after that," said Daisy, shaking her head. "And I didn't even have Fitz's sizable dick pushing my insides out, reshaping my cunt into a cavern I'm really not sure God ever intended it to be."
"Oh, He intended it all right — it feels absolutely heavenly," smirked Simmons. "But I will admit that it takes some practice to get your walls to fit around it perfectly. Fitz's penis definitely has a way of making sure you remember you had sex with it long after it's no longer inside of you."
While the girls were talking about sex and his dick, Fitz had grabbed the soap and begun lathering Daisy up, washing off any grit, grime, rain, and cold that was still left on her from her disastrous mission that had led her to their shower in the first place. As he massaged the soap into her breasts, Simmons joined in washing Daisy's back, and soon they had the inhuman completely clean. When Fitz had washed the last of Daisy's toes, and Daisy had barely restrained herself from kicking him for tickling her, Fitz looked up at her and nodded slightly towards Simmons. So Daisy grabbed the soap and attacked Simmons' boobs, not caring that she was going slightly out of normal head to toe washing order, just wanting a chance to play with the other girl's glorious tits. So much so in fact that Fitz had Simmons' entire back and legs washed before Daisy ever left Simmons' breasts, and only finally leaving them then because Fitz's chin came to rest on Simmons' shoulder from behind and he gave Daisy a pointed look to finish washing the rest of Simmons' front down to her snatch. As Daisy rubbed her soapy hand through Simmons' folds the biochemist shuddered slightly, but Daisy pulled away before anything could get started again, really needing to finish up and get back to give her mission report to Coulson that she'd already taken way too long on doing, showering with FitzSimmons like she just had. But of course not before she and Simmons washed Fitz off, because they couldn't just leave one of them unwashed, no matter how late it made the mission report she really didn't want to do.
As they all dried off a minute later, Simmons said chipperly, "We should do that again sometime. And sorry for not getting you any one-on-one time with Fitz's penis, Daisy, especially inside your vagina, but we'll make sure to make it up to you next time."
"If you two really don't have a problem with it," replied Daisy. "I mean, you are together."
"I certainly don't," replied Simmons, before looking over at Fitz. "Do you, Fitzy?"
"Nope," answered Fitz, shaking his head. "You're gorgeous, sexy, have fabulous breasts, and are our best friend, each other not included."
"So as long as you enjoyed what we did today and don't have a problem doing it again, don't be a stranger," Simmons said to Daisy. "The more tits and clits the better — Fitz needs to be outnumbered in the bedroom and shower from time to time, keep him on his toes."
"Oh, I'm happy to make another appearance or two hundred," replied Daisy. "I think that might have been the best sex I've ever had, and Fitz's cock never even came out to play with my pussy."
"Are we talking about roosters and felines, or genitalia?" smirked Fitz, earning him a slap from Simmons.
"If we had the first I'd let them play together as well, but since we don't, I guess it'll just have to be our sex organs," Daisy smirked right back. "But seriously, thank you, that was the best I've ever felt post-terrible mission, and I'm definitely not cold anymore. And I certainly look forward to doing it again."