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Spending the midnight together in their shared shed, running over their plans to make the sulfa drug for Ruri, racking up their already exhausted minds over the next steps. The moonlight and the dying fire outside of the shed being the only sources of light helping their visions to see each other’s faces somewhat clearly. Chrome lazily laying down on his side on the makeshift bed that belongs to him. Senku sitting up on his side of the bedding, eyes lidded ready to rest his fatigued limbs. Both already have prepared for sleep, shoes taken off in the far corner of their shed. Just running through their plans for the next day, a habit Senku engraved in his day to day life. Chrome tiredly nodding along Senku's plans and asking questions everytime he’s lost or confused, Senku happily explaining despite his tiredness.
After Senku had deciphered a complex chemical compound that is needed for the antibiotic to the younger scientist, there was nothing but silence. Chrome expecting him to go on the next thing on the list, Chrome too tired to open his eyes until he heard the sound of Senku’s head falling on his pillow. Silence fills the room and Chrome opens his eyes wide enough to see Senku mirroring his position on his side facing forward toward Chrome’s body, eyes lidded making eye contact with the younger one.
Slowly watching Senku’s side hit with the mixture of the moonlight and the slowly dying fire outside shuffling, arm bending for his hand to reach his face. Senku not breaking the eye contact as he suddenly starts sucking on his thumb. Chrome’s eyes slightly widen at the image infront of him, confused, slightly more woken up trying to differentiate if this is reality or him hallucinating from pure tiredness alone. The always calm and collected scientist still maintaining eye contact with Chrome, not a hint of shame on his face. Mind completely in a different place than just a few minutes ago.
Parting ways with the two people Senku knew the most for an amount of time that still is not clear left him far more exhausted from everything. Constantly being on the run everyday from Tsukasa’s empire made him anxious in ways he never thought his mind was possible of thinking. He was always too confident in himself, in his friends, but still doubting that something may go wrong, that will result in his true death, inescapable like the first one. Finding his mind needing to regress back to maintain his sanity, for his goals, for his own wellbeing. Nobody took notice when he needed extra sleep during the day to doze off to another headspace.
Chrome getting closer to Senku’s body on the makeshift bed, cupping his cheek in worry. “Senku? What’s gotten into you?”, The little scientist staring into Chrome’s towering eyes above him, slightly confused but still happy from the little contact. Nuzzling into his warm hand and sucking on his thumb even more. Chrome thinks that Senku’s much more responsive, normally he would have slapped his hand off of his face if he ever tried to even touch him like this. The way Senku is still sucking on his finger making his dick twitch in his pants, he doesn’t understand it, maybe it’s his tiny crush on the smarter guy talking, making him feel this way.
Pulling the almost saliva wrinkled finger out of his mouth, instinctively wiping it off of on his clothes. Reaching both hands to press against Chrome’s hand on his cheek, wanting more of that warmth. Mumbling happily enough for the already sitting Chrome to hear, matching his height, “Chrome… so warm,” Attempting to nuzzle even further into his calloused hand. Boner slightly obvious in his pants, unable to hide it. Senku whining deciding it’s not enough for him anymore, he wants to be even more warmer. Taking his hand to clasp it with his own, slightly embarrassed scared that Chrome will refuse his request.
“Chrome, want kissy…”, puckering his lips to ready himself.
Chrome’s eyes widen at the request, the way he said his name and puckering his lips ready to be taken. Not finding a part of him wanting to refuse the little scientist’s request, invading his personal space as Senku falls back into his bed as Chrome’s towering over him to finally press their lips together. Senku moaned at the anticipated contact he craved for. Chrome frowning at how soft his lips are, still moist from sucking on his thumb just now, cupping his jaw as he felt Senku clasp his hands behind his own neck. The casual contact making his head spin, before feeling Senku’s tongue trying to invade his mouth. Easily letting him in as they both melt further into the feel of each other’s warmth mingling together. Chrome coming back for air as he breaks the kiss, part of his mind just wanted to see Senku’s flushed expression. A string of saliva connecting both tongues. Committing Senku’s beet red face to memory, as he whines at the lost contact. Lips red and swollen, wanting to bite and make them bleed. Chrome breaking the silence once again with his curiosity,
“Who taught you that?”
Senku giggling childishly as if the answer was obvious, “My daddy taught me, hehe.”
Confusion once again struck Chrome’s mind. Did he mean Byakuya ? Senku has told him stories about his relationship with his dad just, never this way. Before he could think any further about the scientist’s answer, he felt a hand groping his hard on, sucking in his breath at the sudden contact aided with the fact it’s Senku himself groping him. Not having mercy on Chrome’s hard length, whispering into his ear, “My daddy taught me a lot of tricks…” .
A shiver ran through Chrome’s spine that weakened him enough for Senku to switch places with him. Laying him down on the bed instead, not wasting time to focus on pleasuring Chrome. Yanking the front of his pants down enough for his dick to spring out infront of his face, not waiting to place his fingers around the base of it as he inspects the member with his eyes. Mouth watering at the width of it and the stretch it will hurt his jaw so good soon.
Chrome letting Senku take his time since he feels different than usual, seeing him kiss the tip ever so gently and starting to stick his tongue out little by little, trying to get used to it again. It’s the first time he’s done this with anyone other than his daddy. Seeing him need a bit of a push to know what he’s doing is right, reaching a hand to his cheek to pinch it slightly to gain his attention, looking into his ruby red eyes and adorning the lost frown he gave him.
“You’re doing so good, Senku.” Softly signaling the little boy to open his mouth wider to take him in. Then Senku finally placed the tip flat on his tongue, the image infront of him and the feel of Senku’s warm mouth on his dick made him groan loudly. Hand positioned in his gravity defying hair to brush through it, making Senku hum at the added contact as he’s focused on Chrome’s dick.
Slowly bobbing his head down on Chrome’s length, as his other hand is jerking off the base of the cock. One of the tricks his daddy taught him. Chrome gripping the little scientist’s hair instead of brushing through it, almost jerking his hips with Senku’s bobbing. He wasn’t lying about someone teaching him, this feels too good for him to be inexperienced. Tongue lapping on the head of the dick inside his mouth, tracing the bulging veins. Making Chrome lightheaded, throwing his head back in a loud moan. He’s already so close and Senku doesn’t have his entire dick in his mouth, barely halfway. Resorting to forcefully lower his head down even further, Senku’s once calm eyes widened at the rough handling. Not in a position to fight against the stronger hand pushing him down, eyes rolling in the back of his head at the feel of his airway slowly getting blocked by the length of Chrome’s dick. Making contact with the base of his cock.
Not hearing anything but the faint sound of Chrome’s praise and moans as the pulsing cock inside his throat spasms shooting robes of cum deep down. Finally noticing the pain in his jaw as Chrome pulls out the already softening dick out of his mouth. Swallowing down the remains of the cum on his tongue. Realizing he himself came too when Chrome forced his cock inside his throat. Still between his legs, cheek resting on his groin, staring at Chrome who’s still coming down from his high.
Chrome wipes away the sweat drenched hair strands out of his face, cupping his cheek.
“…Are you alright, Senku?”
Senku grumbling in response,
“…D-daddy’s too rough!!” Voice hoarse from the abuse.
Reaching both hands to grab Senku’s figure closer to his body, cuddling him to sleep in the makeshift bed and under the covers, murmuring apologies in Senku’s ear while placing kisses on his temple as they slowly drift to sleep together.
Waking up in the morning to see Senku’s back to his calm and collected demeanor, his usual self, already missing the little Senku he saw the night before.