Obscure Anon again! This time AU version! This is asking about the Sans of the AU:
Chesttale or Underwaves?
[Who would I date?]
Hello again! (â  â âčâ âœâ âčâ  â )
Okay, I admittedly know very little about either au but their designs are both super cool!
I gotta pick Underwaves. I think his name is Naut?
The eyes man... I love em! His personality is also super appealing to me. Very thoughtful and he likes cuddling? Sign me up!
I actually don't know a thing about Chesstale. Does it even have a story? Or is it like Dancetale and Outertale, being more about a cool design than anything?
So I wanted to post this on valentines (itâs not exactly valentine-themed, I just wanted to put something out hjdsk), but decided it was better to post now -w- this is a little fluff fic for @yeosin-n!! She has a really cool au called underwaves, and of course she makes just wonderful wonderful stuff and i love them all- and then its an undertale au!!!! in the ocean!!!!! ahdjkshd I kinda instantly fell in love with it... and UW Sans (Naut) as well, so uh!! Hereâs a fluffy self-indulgent fanfic!!
Naut (UW!Sans)/Reader :D!!
"heheh, ya look like a big duck, darlin'."
 You try not to make a frustrated noise at him (lord knows he's already having WAY too much fun with you) and choose to simply mumble to yourself quietly as you take step by heavy step towards the innocently splashing waves, as if taunting your predicament.
 "I'd appreciate some help right about now, I could do without the remarks." You snap (softly) at him as you waddle your way over the sand, your heavy diving equipment jostling a little with every step.
 Naut had been helpful enough to put all the weight on you, and you wanted no more than to strangle the grin off the bastard's face.
 He's lucky you're dating him and love him too much to do that.
 Naut only chuckles for a bit, in your face, and you're about to throw your flippers at him when his laughs finally die down.
 "sorry, sorry," Naut lets a few more chuckles out as he wipes the "tears" away from his top set of eyesockets.
 You could swear you saw his lower eyelights turned into hearts for a secondâŠ
 "couldn't help myself. ya sure are a cutie," he says, and you would've made a sound of indignation if you didn't see the flowers happily popping into existence near the hole in his skull, floating down as if a slow waterfall was carrying it.
 You're the one with the happy little flowers, you want to tease, but at the same time, you didnât want him to hide it. It was cute and pretty, you loved seeing him happy and relaxed.
 Without realizing what he's trying to do, Naut's already by your side, going behind your back. Before you could ask him what he's doing, you make a "hup-!?" Noise when he hoists your tank up.
 "better?"
 He was.. helping you carry your equipment.
 "Y-yeah!" You startle (you're not sure why, but the fact that he's actually helping you makes you feel.. sentimental).
 "ok then, let's keep going,"
 With the help of Naut, the journey to the waterâs edge wasnât as painful as it was when you started trudging down the sand, and you eventually got about chest-deep in the water.
 Naut let go of your tank, keeping you steady while you fit your dive boots into the open heel flippers. You fit your mask onto your face, and Naut starts drifting into deeper waters, now bobbing in the waves (how do skeletons floatâŠ? Of course he came from the ocean but⊠itâs like he has invisible floaties on!). He snrks a little. You make a face at him (well, as much of a face you could make with a mask covering half your face).
 âWhat?â
 âheheh⊠nothing. ya just⊠ya kinda look like a fish? with the gogglesâŠâ He makes two C-shapes with his phalanges, bringing them up to his sockets. âoh glowing waves above, i just wanna pinch you.â
 âH-hey! Stay focused!â you fluster, holding your hands out to him as if he was going to bite you.Â
 Naut chuckles. âyeah, youâre right⊠i can always pinch ya later.â he teases, and before you could protest more, he gestures with his hand. âok, check your second stage first, and letâs swim slowlyâŠâ
 You give the purge button of your second stage a couple of times, before attaching it to your mouth, floating towards your sea-lover. You release the air from your BCD, and Naut takes you by the hand, gently guiding you into the water.
 Everything feels different as soon as you are completely submerged, the sounds around you switching from air to water; your surroundings turning blue in an instant. For a few moments, you can only hear the sound of your breathing, the bubbles burbling around you.
 âyou doing ok?â Nautâs voice snaps you out of your momentary awe, sounding practically as clear as he does outside the water. âdonât forget to equalize the pressure in your ears.â
 The sand slopes down, and you tilt your head this way and that, giving Naut the ok signal when you think youâre good.
 Heâs dropped his teasing and playing around as he slowly brings you away from the surface; you vaguely feel like someone with a blindfold on while someone elseâs pulling you somewhere to show you a surprise. He has to keep looking behind him to make sure he doesnât run into corals or sharks or whatever.
 Your world completely changes around you- not that youâve never seen ocean scapes before, but actually being in it to see it for yourself sure is a special experience. You see your first fish, catching your eye as it darts away from below you. The sandy bottom keeps going down, and down, and downâŠ.
 ⊠Until eventually, you reach a spot where it stops, turning into a plain of sand.
 Naut sits down- just, sits down on the sand, and it's so weird how he just so casually sits, legs apart below you, underwater. He tugs you a bit, pointing to the sand.
 You descend, knees hitting the sand with a soft âpwshâ... your hands inadvertently fall onto Nautâs ribcage.
 You see all four of his eyelights looking down, then lighting up, and you have no idea if he can see you blushing underwater-
 But thankfully, Naut knows to set his priorities straight, and right now itâs making sure your diving goes smoothly and safely.
 âgood?â
 For a second, seeing Naut completely at home in this environment, you nod your head without thinking- shaking your head before giving him the ok sign.
 His grin grows and he laughs.
 Damn. Even underwater he still sounds smooth as hellâŠ
 âheheheh⊠ok, bubbles. letâs get started then, shall we?â
 After about a minute of buoyancy practice, Naut kicked off the sand with his slippers (how did they stay on his feet under- you know what? Maybe you shouldnât question the physics of underwater monsters so much), letting you follow him in your own pace.
 Not too far from the waterâs edge, corals started sprouting out from the sand, and no longer than that, more sea life appeared. A rainbow of fish were milling about, shrimp and crabs skitter over the âliving rocksâ, and a sea turtle lazily swims by.
 Naut easily backpedals towards it, and it circles around him.
 Your eyes are taking in the underwater scene all around you with splendor; if you could smile, you would. It was all just so pretty, and your boyfriendâs over there becoming some sort of disney princess, as a few cleaner fish swim towards his skull. You donât need to hold in your laughter on account of the regulator in your mouth, but your metaphorical smile gets bigger as you watch the tiny striped fish look around his crack while heâs completely unaware⊠he looks like heâs about to say something when his eyelights go out, as one of them starts nibbling.
 He flaps his hand like heâs swatting a fly away, and maybe youâre being tortured right now because you just want to let out a raucous laugh, purposefully shoving it in his face.
 âoh, of course, youâre entertained.â Naut lids his sockets a little, feigning annoyance, though the cute little flowers only continue to flow out of his skull.
 You want to gesture a âsorry (not sorry)â at him, but without knowing sign language, the most you could do is open your hands for a hug. Heâs been wonderfully non-teasing the whole way down, and you think he deserves some credit, especially showing you⊠all of this.
 Youâre thinking about how thankful you are to have him with you when you see his eyelights dart somewhere else with his grin turning mischievous. He points to the turtle still swimming nearby and asks âhey, what kind of turtle do you think that green sea turtle is?â
 ⊠What.
 You blink at him a couple of times, trying to convey your âwhat kind of questionâ emotion youâre feeling right now, knowing heâs smart enough to realize what he just said-
 âhahahah, iâm joking iâm joking, i know itâs Chelonia mydas. câmon, iâm no loggerhead.â
 w-
 âŠ
 Loggerhead. Loggerhead sea turtle.
 âŠ
 You raise your fist at him, and you hope he could hear your internal screaming at him. Looking at the way his sockets crinkle and his grin practically stretching from non-existent ear to ear, you think he can.
The dive was relaxing and pleasant, with Naut completely in his element, giving you the reassurance that youâll be alright with him. He brought you to different parts of the reef, highlighting some of the animals similarly as to how he addressed the sea turtle.
 He brought you swimming closer to the seafloor, showing you clownfish in their stinging friend-homes, and with a straight face he said, âkeep your friends close,â he put a âfriendlyâ arm around the carnivorous invertebrate, âkeep your anemones closer.â
 You swam away from him then, closer to whee the sand starts sloping again. You met a singular jellyfish there, to which Naut poked away from you- it could just fit in your palms. You watch with mild glee as he gently poked it around⊠you know itâs a living creature⊠but wow did you want to bounce it and play around with it like a toy. He moved it away from you and sent it bobbing in the direction of the open ocean, and he turned to you to say âare you jelly you didnât get to play with it?â
 You wanted nothing more than to show him a flat face, if you were brave enough to take the regulator off your mouth. You followed him back towards the reef, swimming through a large school of fish that parted as you did.
 âhow you feeling seastar? iâm feeling fin-tastic.â
 He turned around to gesture at the school. âarenât they like living artwork? so beautiful. i like to consider myself sofishticated, you know.â
 You almost couldnât focus on the reef around you as you were both delighted and desperately trying to hide it from him, that youâre enjoying a diving buddy/instructor that could talk to you as you dive.
 You swam leisurely ahead of him, looking for more âlandmarksâ (sea⊠marksâŠ?) to look at before you run out of gas, when you heard a rush of water behind you.
 You almost let the regulator out of your mouth when you see a huge eel flapping about near you, with Naut holding its tail end and keeping it from coming at you. He reeled it in towards him, holding its head.
 âdonât know what got into this guy. maybe your fins surprised him.â
 He goes silent for a while.
 âbut i guess thaaatâs a moray for you.â
 Old jokes!!! Heâs too much!!!
 You wished you couldâve said something to him so you werenât simply being subjected to his continuous puns, but at that point it looked like you might just get that; when you saw that your pressure gauge showed less than 100.
 Naut quickly looked to you when you made a wave at him, giving him a 9-0 signal, trying to convey an âup?â as best you can.
 âoh. oh yeah letâs get you up, bubbles.â He said as he swam towards you.
 It was like- he had a switch for professional diving instructor and âregular Nautâ. He quietly guided your ascent, slowly and steadily, making a stop below the surface to decompress, before finally swimming all the way to the surface and inflating your BCD.
 âBlah!â you ungracefully spit the regulator out, letting it sink into the water and take the mask off your face. âMy teeth always feel weird afterwardsâŠâ
 âcusâ youâre clenching it all the time.â he floats towards you, putting an arm around you. âhow you feeling, gull friend?â
 You open your mouth, only to stop when you realized what he said- as if on time, a seagull keows above you.
 You give him your best attempt at a seething glare, but you take a breath and smile, putting an arm around him as well. âYou know what? That was really nice. I havenât had this much fun in a while. ⊠or really, I didnât do that much before I met you. I liked this, Naut. Thanks for taking me out here with you.â
 You watch with satisfaction as Nautâs lazy expression and smug-ass grin fade away, his main sockets becoming wide and a light blush colors his cheekbones.
 Ha, gottem.
 âo-oh. you- yeah. i⊠you're welcome. anything for you, seastar. iâm glad you liked it.â his eyelights shift away from you.
 âYeah⊠though not gonna lie, you really were a sun of a beach down there. Punning when you know I canât say anything to you- it was like, water you doing!â
 âha, yeah i know, it was-â Naut paused. And then he turned to you, seeing how smug and proud you looked of yourself.
 You watched how his eyelights dilated in his sockets, sparkling like sun rays dancing in the water.
 âheh⊠hehehehâŠ.â he chortled, âoh⊠donât be mad now⊠itâs not a good idea to get too tide down to your emotions.â
 âWell- high tide or low tide, Iâll be by your side.â
 âbetter make sure you werenât pier-pressured into that.â
 âNah. Iâm a girl who just wants some sun with my bonefriend!â
 He was smiling like a downright lovable idiot right now, eyelights shining like the sun.
 âhhhhoooh my god, i want to kiss you.â
 You give him a smirk.
 âOh! So youâre feeling⊠naut-y?â
 Your grin weakens a little when Naut stops grinning, and his eyelights shrinking back to their regular sizes, shimmering. For a moment you worry if you said something wrong somehow, but your worry was unfounded- just moments later you watch as cute little hearts start coming out of his skull, with four of his eyelights turning into the same shape.
 âi donât know why kissingâs naut-y, but itâs in my name-ture to be.â
 Youâre smiling just as wide as him, ignoring how far he had to reach to make that pun. He closes his eyes and you let him lean in towards you, meeting him in the middle. He wraps his arms around you and kisses you while you reciprocate happily; bobbing in the waves under the sun.