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Dean didn’t really know what to expect while being in a relationship with an angel (not that he had a great many experiences of being in an human relationship for that matter) but it certainly wasn’t this. Cas had always been a quirky, dorky kind of guy. He was inexperienced when it came to the human world and had a difficult time understanding and acting like a human being because of that. Dean couldn’t really fault him for that, if he was suddenly dropped in some new and weird ass place with made up norms and rules he’d be fumbling just as badly as Cas did. But that didn’t erase the weird shit Cas got up to now that the two of them had finally admitted their feelings for each other and gotten together.
Being friends with an angel was one thing, but dating was a whole other ballpark. When the relationship was new Dean had felt a bit nervous and unsure on how to treat his new boyfriend, he had never been in a real relationship with a guy (or guy shaped cosmic being) before and had never been in a relationship where he was so sure that his partner was it for him. So while Dean was running in circles inside his head on how to treat Cas now that they where together and how to ease into affection, pet names and coupely stuff Cas practically jumped off of the friendship mountain and dove into the relationship river (is that a saying? Does it make sense? Dean has no idea).
Dean could not move an inch without Cas plastered to his side like a sea urchin with separation anxiety, the hunter could barely go to the bathroom without Cas kicking the door down because he missed him. Cas has no qualms about kissing, touching or dishing out profound compliments while making sure Dean is staring into those high beams of his.
The pair already did practically everything together but the relationship further cemented how connected and depended the two were and spending time away from the other became even harder than before.
Dean, who always preferred to sleep alone where he didn’t need to worry about keeping another person safe from harm or dealing with someones loud ass snores, had invited Cas to spend the nights together in Deans room a few weeks ago. It had only gone a few days of sharing a bed before Cas had practically moved into Deans room, the two of them spending every night together in bed since then.
…
Dean is laying next to Cas in their shared bed, beneath the warm blankets and pressed against Cas’s body he lays breathing deeply, his mind in the world of dreams. Cas silently watches him in the dark, they have been together for a few months now and have dropped all pretenses of needing personal space, something that thrills Cas to no end. He can finally watch over Dean while touching him, standing in the corner of the room as he had done before to look after the human without his permission was one thing, but touching Dean while he was unconscious was a line crossed even in the angels mind.
Dean had tossed and turned a bit before falling asleep in Cas’s favorite position, on his chest. This meant that the angel could slip his hands underneath the hunters loose sleep shirt and explore Deans back with his hands. Deans face was also facing Cas, which gave the angel the perfect opportunity to analyze every inch and molecule of Deans sleeping face. His face was slack in sleep, mouth parted slightly showing just a smidge of his front teeth that Cas’s eyes fixated on. His gaze darted over soft cheeks squished against the pillow and long eyelashes adorning his closed eyes, Deans short hair was mussed and messy from shifting positions and Cas could not stop looking, could not stop touching.
His hands felt Deans warm skin, going up and down with his breaths in a tranquil pattern that the angel some night found himself getting lost in. Deans back is muscular from years of hard work and hunting while still remaining soft and pliable where his bodies natural fat is stored. Cas’s hands glide over the hunters soft hips and squeezes the skin that lay just above his boxers.
Cas leans in even closer to smell the hormones and chemicals in Deans body, he listens to the hunters organs working to keep his body functioning and together with his steady heartbeat it all sounded like the most lovely orchestra to the angels ears.
Ear against Deans neck, the angel continues to listen to the symphony of Deans body. Being this close to the hunters skin, Cas instinctively sniffs at Deans neck to get his scent to accompany the sound of his living body. But Dean had, much to Cas’s chagrin, showered just before bed and the angels senses are flooded with a soapy smell rather than Deans own unique scent. The angel presses his nose harder against Deans neck to get at least something but it proves inefficient, just more cleanliness and a balanced PH-level soap.
Cas’s frustration grows, he wants to smell Dean properly but his stupid shower and his stupid clothes are getting in the way. Cas growls in frustration as he starts to rip at Deans shirt at the neck, he needs it off. Cas presses his nose into the skin previously hidden by Deans shirt and finds that it's still not enough to sate him.
Dean stirs as the angel once again rips his shirt open, waking with a confused expression on his face.
”The hell you doin’?” Dean asks sleepily.
”Need it off. Now.”
Without further explanation Cas continues his shredding of Deans shirt.
”Dude! What the hell! You’re ruining it!” Dean gasps, trying to get away from Cas’s hands. The attempt is proven fruitless as Cas simply flips the hunter over on to his back and pulls his shirt up, exposing Deans stomach and chest to the angel. Cas finishes the maneuver off with straddling the hunters pelvis, pulling the shirt off of Deans body and stopping to keep his hands inside the garment and pinning it to the pillow. Cas turns the bedside light on with a thought to admire Deans body in the warm light.
”Be still.” Cas says, pressing his face into Deans now exposed clavicle and inhaling deeply. Deans body shivers at the contact but otherwise follows the angels command and goes still.
”Not enough.” Cas grumbles and follows his nose to where the most Dean smelling area of Deans body is.
”No! No! Not there!” Dean shrieks and tries to flop out of Cas’s grasp to no avail as Cas presses his nose into Deans left armpit. The short hairs tickle Cas’s nose as he gently sniffles at the skin. Dean still smells a bit too clean for Cas’s taste but his natural scent is still strong here, he smells like warm skin and salt and Dean tries even harder to buck him off as Cas’s tongue lick the edge of his armpit.
”Dean.” Cas says as he sits up a bit straighter to look the hunter in the eye. ”It’s difficult to do this properly when you’re moving, please stay still.” Deans face and chest are bright red and Cas can practically taste the chemicals and hormones in his brain and body that where previously dormant now going haywire.
”Whats wrong with you!” Dean exclaims as he continues to move despite Cas’s request. ”That’s fucking gross!”
”How is what gross?” Cas asks, making Deans face turn an even brighter red.
”You’re asking why fucking sniffing and- and licking my armpit is gross?!” Dean yells.
Cas takes in the human from where he’s sitting on top of him. His flushed face and heaving chest, his nipples hardened and abdominal muscles clenching and unclenching, Deans eyes are big and begging, his lips pink and open and so inviting. His whole body practically screams ’devour me’.
”Dean, I have had my mouth on multiple different areas of your body and I have gotten no complaints. Why is this area different?” Cas inquires.
Dean averts his eyes, suddenly overcome with shyness, his face a low mumble.
”It just is…” He says, which frustratingly doesn’t make things clearer for Cas.
”You like it when I lick you here.” Cas says and leans forward to press his pink tongue against one of Deans pebbled nipples to drive his argument home, the angel is rewarded with a gasp and a beautiful arch from Deans now pliant body.
”That’s… different.” Dean breathes out. ”M’ sensitive there, you know that.”
”You are sensitive here too.” Cas argues as he lets his thumb brush against Deans armpit again. ”The skin here is very thin compared to the rest of your body, making it delicate and responsive to touch.” Dean just stares at Cas with glassy eyes. Well then. Cas tries again.
”Me licking you wasn’t meant as a sexual act, I was merely wanting to smell your natural scent which was proven difficult by your washing and shirt usage. Then I simply wanted to see what you taste like here.” Cas explains.
”Dude, you know I have to shower. Can’t go around stinking up the whole place.” Dean says which causes Cas’s eyes to roll dramatically.
”Dean, how many times-”
”Yeah, yeah, I know you ’don’t perceive scent the same way humans do’ and have no problem sticking your nose under my clothes after a hunt.” Dean wiggles his arms out of his pinned shirt to place his hands against Cas’s chest. ”But not everyone is a big fan of Dean au natural, alright? Not even me.”
Cas mulls this over for a few seconds as Deans fingers brush against his chest.
”Alright, but you need to acquire a soap that has no scent. I only want to smell you.”
”You got a deal, sweetheart.” Dean says with a smile.
”Can I go back to licking you now?”
”What!?” Deans fond smile turns into a look of scandalized surprise, one you would make if a perfect stranger asked if they could lick you, not your partner.
”You where wiggling and flopping around, I didn’t get to finish.” Cas says, observing as Deans eyes grow impossibly bigger and flit quickly to where Cas is still sitting on top of Deans midsection.
”You mean you-” He cuts himself off with a gasp, despite his best efforts to hide his the low simmer of arousal coursing through his body, he can’t hide the smell of it from Cas’s nose. Even if Cas wasn’t an angel with a superhuman sense of smell it would still be so easy to read Deans body right now, he’s gasping and arching to get away while simultaneously doing nothing to actually get Cas off of him.
”I told you this has no sexual purpose.” Cas calmly tells him, grabbing Deans shoulders to hold him down more effectively. ”I simply wish to taste you.”
”But…” Dean trails off, no longer flopping around like a fish, finally understanding that trying to overpower an angel of the lord is impossible. His cheeks are still red and his eyes won’t meet Cas’s. He must reprimand this.
”Dean.” Cas begins, cupping Deans face in one of his hands and gently petting the hunters soft skin with his thumb. ”Don’t be selfconcious, you taste perfectly fine.” He comforts Dean in a soft voice.
”That’s not what I- look, I’m not self conscious about the way I taste, the- the problem is that you’re licking me. My armpit, you’re licking my armpit, dude.” Dean says clearly exasperated and desperate to make himself understood. Cas makes his face frown to show his confusion and disagreeance.
”But why can I-”
”I swear to god Cas if you lick my nipple again, you’re sleeping on the floor.” Dean interrupts, Cas snarks back about ’not sleeping anyway’ so that Deans ’threat means nothing to him' but Dean sinoly ignores his bad behavior in favor of decidedly closing his eyes to go back to sleep.
Cas lays down, practically on top of Dean and treasures the sound of oxygen getting pressed out of the hunters lungs at Cas’s weight pushing him into the mattress.
”I still don’t understand.” Cas says to the skin of Deans cheek. ”Why can I lick and put some parts of your body in my mouth but I’m not allowed to do so with others?”
Deans chest rises with a large sigh as the hunter tries to find and answer so obvious to himself but so foreign to the angel.
”Humans got a lot of weird unsaid rules I guess, not everyone agrees or follow them but uh, most people do.” One of the hunters hands is playing with Cas’s hair as Dean speaks. ”You can, like, lick my nipples cause they’re clean, I guess? And touching them during sex is common so it's not weird in that way either, they’re like kind of a neutral part of your body I guess.” Another sigh. ”Peoples armpits are pretty gross too, they smell if you don’t use deodorant and are just kind of unpleasant to look at. I mean, some kind of hairy little pit under your arm? Totally freaky.”
”I think I understand I bit better now…” Cas says ”But you showered just a few hours ago, your body is clean. Your scent is very enjoyable and I don’t think any part of you is unpleasant to look at, I don’t mind hair either.” He tells Dean who is quickly running out of reasons as to why his boyfriend can’t stick his tongue in his armpit and is mortified about it. Cas’s hand finds Deans cheek once more.
”If you feel uncomfortable, I will respect your wishes and refrain from tasting parts of your body that you deem not suitable for such activities. Even if I don’t quite understand.” Cas tells him sincerely, and what kind of a monster would Dean be to deny Cas something that he so obviously wants that Dean quite honestly isn’t all against. As long as it isn’t some freaky sex thing, right? Dean thinks back to the nearly feral way Cas had tried to rip his shirt off just to smell his skin, like he didn’t just crave it but needed it. Looking into those gentle blue eyes of the man who loves him, Dean makes up his mind.
”Look, it wasn’t all bad, okay? You just caught me off guard. If you wanna lick me somewhere just gimme a heads up.” Dean tells him, making Cas shoot up to a sitting position once more, looming over Dean with wide eyes.
”Really?” He asks with such a ridiculously hopeful tone that Dean can’t help but laugh.
”Sure, sweetheart.” Dean says between laughs ”You ask me real nice and you might just convince me to let you bite.” He says with an easy and flirty smile, unaware that he just turned Cas’s world upside down.
”Yes, yes, I want that.” The angel agrees with a sincerity and seriousness more fitting for a business proposal rather than the offer of sucking on some Dean.
”Alright then, if you’ll let me sleep properly for the rest of the night, I’ll let you bite how much you want.” The promise seems like a mistake judging by the hungry look in Cas’s eyes at Deans deal, the angel doesn’t even respond with words just nods vigorously in a way that makes Dean fearful for his soon to be bite marks that the angel will have no trouble adorning him with.
”Can I…have one more taste? Then sleep.” Cas asks.
”Fine, knock yourself out.” Dean agrees and puts his arms up while decidedly not thinking about what a weird situation he is in. An angel straddling him while he flashes his armpits, sounds like the beginning of some weirdo fetish movie that Dean doesn’t want to think about. But Cas doesn’t go for his armpit or chest or whatever Dean had imagined the angel would, instead steading Deans face with one hand gripping his chin and the other pulling at each side of one of the hunters eyes. Making sure its open and unblinking for the angels pink tongue that he sticks out in preparation, Cas doesn’t get that far however.
”What the hell are you doing.” Dean says, it's phrased as a statement rather than a question.
”I’m about to lick your eyeball.”
Silence.
”To see what the fluid coating it tastes like.” He explains further to the unreadable expression on Deans face. The hunter finally breaks out of his stupor and waves away Cas’s hands, the angel follows his lead and allows his hands to be moved.
”No, no, nope, no way.” He says decidedly. ”You can lick my armpit till you can see your reflection in it but there’s no way in hell you’re putting your tongue in my eye, nuh-uh.”
”It won’t hurt-”
”Didn't you just say you wouldn’t lick me if it made me uncomfortable?”
”Yes, but I-”
”Right!” Dean cuts him off once more. ”Then no eye licking, alright? Too weird…”
Cas reluctantly agrees with a sad nod and watery eyes like that of a scolded puppy. Dean somehow feels a bit bad that he doesn’t let the cosmic being go to town on his decidedly very vulnerable, human, eyeball that he has no idea how it would react to getting licked. Well, gotta draw the line somewhere.
The angel flops down face first onto the mattress again and turns around to lay on his back, twisting his neck to look at Dean and pat his own chest.
”Would you like to lay here?” Cas asks in a more watery voice than normal.
”Sure.” Dean responds with a yawn and crawls on top of Cas’s broad chest, the light clicks off and the pair are once again swallowed by the darkness. Dean settles against the angels warm body and splays his arms on either side of the angel and presses his nose into Cas’s throat, he feels the curious hum more than he hears it.
”Is that an odd place to smell?” Cas inquires silently into Deans hair.
Dean hums back at him.
”Nah, throat’s standard stuff. Good, soft skin and usually where you wear some perfume and cologne. Not to mention real freaking toasty to put your face in someones warm neck when you’re cold.” Dean answers just as quietly while his eyes are slipping closed.
Gentle fingers push and comb through his hair as Dean’s body relaxes further into Cas’s.
”I see, thank you for explaining it to me.”
”No problem.”
”Goodnight Dean.”
”Night, weirdo.”