#ryu18only

Red: he would be very excited to get the opportunity to play with Sans and any kind of bondage, sacrum lacing would be an especially sweet treat for him~. Mostly cause he'd be able to lace up the smol skele and then send him on his merry way, to work, shopping or to a date at Grillby's~. He'd be very very very happy see Sans squirm in his seat, the lace tied just tightly enough to chafe while he's sitting or walking. The blush that Sans couldn't shake off would make Red purr in pure delight. And when they finally get home and Red has Sans under him, flustered, all his joints burning blue from arousal and embarrassment, Red would take his sweet time unwrapping his precious gift. The lacing would make it impossible for Sans to summon his ecto while it's laced through the sacrum holes so the act of pulling it out would almost be enough to make him cum... if Red let's him~

Wolf Red: he would also love to have Sans squirm when he experiences lacing for the first time, but he wouldn't let others see it. He'd keep Sans home and probably tease him by pulling on the lacing occasionally while they watched TV. Wolf Red would try to play it cool and act like the sight of Sans practically melting in his lap wasn't affecting him, but his traitorous tail would give him away every time (blasted thing just doesn't want to stop wagging). He wouldn't have the patience to tease Sans long though, cause once Sans starts to whine and beg for release, wolf Red would snap and pull that lace out so fast Sans would have friction burns for a while (wolf Red would be tied up after that and thought some patience ;P).

Lamia Red: surprisingly he wouldn't really be interested in this unless Sans asked for it. Why you ask? Cause he'd rather have Sans tied up in his own coils than some flimsy lace. Of course, his tail is way too thick to be used for sacrum lacing, but he doesn't have an exposed sacrum so he isn't really aware how sensitive that can be. If Sans ever suggests it, and lamia Red figures out just how sensitive the sacrum is for his legged bonefriend, he'd be more than happy to use the lace on him... or even more likely to use his tongue to play with that sensitive spot~

Thank you for the ask nonny! Hope you like!

The moment Sans relaxed into the kiss, Red took over, pulling Sans closer and deepening the kiss. Their tongues danced as Red’s hands continued to roam over Sans’ ecto, squeezing and pressing his claws in all the spots he knew would drive Sans crazy.

The smaller skeleton pushed on Red’s shoulders to get him to pull back, face completely flushed blue and eyelights starting to fuzz around the edges. He took a moment to catch his breath, but when he saw Red licking his teeth, eyesockets lidded and a hungry look practically devouring Sans whole, his breath hitched. He couldn’t look away, his body heating up from the intent Red was projecting his way.

He didn’t get a chance to catch his breath as Red grabbed him and spun him around with one hand, the other reaching to the nearby desk and dragging the chair towards them. Sans looked into the mirror, trying to see what Red was planning, when the bigger monster suddenly pulled him into his lap. Sans was left straddling Red’s legs, still wearing his black basketball shorts, while Red massaged his waist.

“remember yer safeword, sweetheart?” Red asked as he leaned back down to nuzzle and lick at Sans’ vertebrae.

“y-yes. *ah* blue.” Sans breathed out, leaning his head to the side to give Red more access to his neck, bones softly rattling in pleasure and anticipation.

“good boy.” Red purred out as he slipped one hand below Sans’ waistband, ghosting over the soft ecto between Sans’ ample tighs. “den i’m gonna show ya just how pretty ya are, ‘kay?”

Sans couldn’t find the words, his ecto pussy already twitching from the light touches and the promise in Red’s words, so he just frantically nodded. Red chuckled into his neck as he pressed his teeth to Sans’ neck, not biting hard enough to leave a mark, but putting enough force into it to make Sans’ breathing hitch. He was gonna enjoy this tasty treat today.

Gently, Red spread his legs, pulling Sans’ with them and spreading him wide. Sans’ breath quickened as the fabric of his shorts pressed Red’s clawed hand into his sensitive ecto magic. Red didn’t hesitate to start moving his phalanges over Sans’ folds, teasing the magic into starting to slowly get wet. Sans’ body trembled as Red teased him with one hand and used the other to continue squeezing and massaging over the rest of his ecto. 

Sans let out a shaky breath, sockets closing as he tossed his head back into Red’s shoulder, trying to focus on the stimulation. His hips started to rock into Red’s hand as he chased the feeling, until suddenly Red’s hand stilled. With a whine Sans rocked his hips a little harder, trying to get Red to move again, but instead he felt Red’s hand on his chin pulling his skull forward.

“nu-uh sansy, ya gotta watch.” Red scolded, holding onto the little monsters chin firmly as he directed it to look into the mirror.

Sans’ eyelights were fuzzy and he was having trouble focusing, but he did his best to obey. He knew that Red wouldn’t let him finish until he listened and he didn’t really want to fight him on it. Even if the sight of his own body didn’t really give him a lot of comfort.

“good boy, sansy. yer bein’ so good fer me, ain’t ya?” Red purred and leaned down to nuzzle Sans’ cheek, his breath warm. “now look how pretty ya are as i make ya come undone.”

As Red said that he plunged two phalanges into Sans’ pussy, making Sans writhe in his lap over the burn. But his other hand held firm and made sure Sans saw everything. The way his ecto glistened as his body heated up, sweat spreading over it. Red’s hand moving inside his pants, a wet spot spreading around them as his pussy leaked. The way his jaw slackened as he lost himself in the pleasure, warmth spreading from his core through his ecto and bones, right down to his limbs, making his toes curl.

“yer so pretty, sansy~. look at ya. so soft and perfect.” Red continued purring into Sans’ ear, making sure that Sans was looking where he wanted him to. “yer body is mine and i ain’t lettin’ no one say nothin’ bad ‘bout it, not even ya. cause yer gorgeous. touchin’ ya makes me happy.” He backed this up by rubbing his erection into the back of Sans’ shorts, making sure Sans knew how he was affecting him. “feel dat sweetheart? yer gonna drive me insane.”

When he was sure Sans wouldn’t move his skull, Red lowered his hand back to Sans’ ecto and pressed his claws into it. It wasn’t hard enough to puncture the it, but it was enough to bruise. At the same time, he used his other hand to press deeper into Sans’s pussy, using his thumb to tease his clit. Sans’ whole body tensed as he could feel his peek getting closer.

“ya like dat?” Red chuckled as he asked. “like seein’ me all hot fer ya? fer dat pretty ecto ya have? den will ya come fer me sweetheart? show me how pretty ya are as i make ya fall apart? come on sansy. cum fer me.”

Sans didn’t need much encouragement. The moment those words left Red’s teeth, his fingers hitting Sans’ sweet spot and his thumb pressing on his clit, Sans felt the built up pressure in his core release. His pussy spasmed around Red’s phalanges, as his toes curled and his hands grabbed Red’s hand that was still pressing into his ecto. 

He could see it all. 

His own blissed out expression as his climax was drawn out by Red’s skilled hands. The way Red looked at him with pure adoration and lust. The gentle pets over his ecto as Red eased him down from the peek. And he could feel a wet spot pressing into his back. Red came. He came from watching Sans and touching his ecto.

Sans’ skull was flushed a bright blue, breaths coming hard as he tried to wrap his skull around all of that. But his eyelids were getting heavy and he was having a hard time keeping his sockets open.

Red must have noticed, because he leaned down to leave a chaste skeleton kiss on Sans’ cheek as he lifted him up and started carrying him out of the room. The smaller monster didn’t have the energy to form words so he just let out an inquiring whine hoping Red would understand.

“heh, clean up before bed.” Red snorted out, obviously very proud of himself.

Sans just scoffed in his general direction as he made himself comfortable in Red’s arms. Let the big bonehead do the work since he was the one to cause the mess, right?

... he’ll have to find a way to pay him back later.

Sans decided to start by leaving his ecto summoned while they napped.

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This almost ended up with Sans riding Red, but I figured Sansy needed some nice loving after the whole self-depreciation episode and deserved to have all focus on him ;3

And Red did get a good reward! Naptime cuddles with Sans having his ecto body summoned! >:3

I hope you liked noonie! It’s been a while since I wrote smut so it probably has a few mistakes, but I hope it’s stil good.

Sans was checking himself in the mirror... again. But unlike last time, he wasn’t doing it to check how “bad” his body looked.

This time he wanted to make sure he looked good.

Over the past few weeks Red had made sure to hammer his love and appreciation of Sans’ voluptuous curves into his thick skull and it worked. Sans looked himself over in the mirror and he couldn’t stop the blush that spread over his cheeks. The view made him remember all the times Red “showed him his love” in front of that mirror and he could feel his already summoned magic starting to itch. Red would be very proud if he knew the training paid off that well~.

With a shake of his skull, Sans tried to focus back on the moment. He looked himself over one more time, checking that everything was in place. His generous ecto body was summoned, covering everything from his feet up to his ribs. But unlike last time he wasn’t wearing his usual ratty basketball shorts. This time he wore something special. A gift for Red.

He wore babyblue thigh high socks with a tiny white bone pattern all over them and a white lace top holding them in place. Above that was a short dark blue skirt, covering just enough of his body to leave a little space between the skirts edge and the socks, showing off the pretty blue of his ecto and teasing with a hint of the treasure hiding behind the folds of the skirt. And to top it all off, he got a soft white sweater that barely covered his ribs, leaving his ecto belly completely exposed. The sweater’s sleeves went down to almost cover his hands, the ends of his phalanges barely poking out of them.

He looked... good, right?

It was hard to tell, his usual self-deprecating thoughts trying to rear up and make him feel ridiculous in the outfit, but he fought them down. He was doing this for Red and he was sure Red would like this! He made sure to do some research before getting all the parts for this surprise and he was sure it would be just right.

Very sure...

Pretty sure...

Mostly sure...

“red! can you come here for a minute?!” He yelled back towards the door of their room before his doubts made him chicken out.

“comin’.” Red grunted back, probably getting up from sprawling on the couch. Now it was too late to back off, he didn’t have time to change.

With a deep breath, Sans braced himself for the moment Red opens the door. His soul beat a mile a minute and the blush crept back on his cheeks. Instead of focusing on his own reflection, he kept his eyelights trained on the door, feeling sweat slowly sliding down his spine.

‘fuck this was a mistake.’ The thought ran through his mind as the heavy steps of his big mate neared the door. But before he could spiral into a panic the door swung open and both skeletons froze.

Sans stared at Red’s reflection but he couldn’t tell where Red was looking at. The bigger monster stood with his hand still on the door, eyelights gone and mouth hanging open as if he was about to say something. But no sound came out.

The moment stretched and Sans started fidgeting in place, suddenly very aware of how exposed he looked. Red will probably laugh at him but what’s done is done. He gathered the last of his determination and gave Red a small wave of his hand, the other gripping the hem of his skirt.

“hey bigbone...” Sans said, voice quiet and unsure. “... surprise?”

The moment those words left his mouth Red was on him, hands grabbing his shoulders. Before Sans could even question it, Red spun him around and their teeth met in a frantic kiss. It felt like Red was trying to devour him through the kiss as his hands went straight for Sans’ ass under the skirt and gave a firm squeeze to both cheeks.

Sans pushed him back when he ran out of air, a string of purplish saliva connecting their teeth. They were both breathing hard, their eyelights starting to fuzz around the edges as magic rushed to their joints giving out a soft glow. 

Sans was shocked to see Red lose control this fast. Usually, it took quite a while to get the bigger monster to snap and devour Sans like this (and Sans knew exactly how to achieve that). Yet here Red was, one look at Sans and he was obviously ready to rip his clothes off and then fuck his brains out.

“r-red?” Sans gasped out, barely gathering enough air to ask that when he was suddenly lifted up and carried over to the bed.

Instead of being dropped on it as he expected, Red held him close and set the pillows up on the backrest so anyone laying down would be propped up a bit. Then he laid down and put Sans in his lap, both legs straddling Red’s hips, skirt splayed around him. Sans couldn’t stop the blush slowly spreading from his cheeks down his neck, the position making him feel as if he was on display.

... it felt kind of good.

Sans wiggled in his spot a bit, trying to get more comfortable, only to cause Red to hiss out a curse. He looked down at the big monster and saw red magic sparking over his form, visible through spaces in Red’s clothes where his shirt was riding up a bit. A moment later Sans could feel a bulge form underneath him.

“heh, doing okay there red?” Sans chuckled, sockets crinkled in mirth. It only got him a growl in return, Red’s hips trusting up at the same time and making Sans gasp.

“f-fuck!” The smaller cursed as he felt his magic react, pussy starting to feel empty. He won’t be able to hold out long either it seemed. Judging by the smirk on Red’s face, the bigger monster knew it.

‘smug bastard.’ Sans thought, a vengeful frown making his brows twist, ‘two can play at that game.’

Sans leaned back, showing off his ecto body, one hand clutching the long sweater sleeve and covering his smirk, as he rocked down onto Red’s erection through the bigger monsters pants. He wasn’t wearing any panties below the skirt so there was only the thin fabric of Red’s shorts separating their magic. And it was getting soaked by their combined magic, fast. Sans kept rocking, not giving Red a chance to retaliate, as he listened to their combined moans and grunts. Red’s hands helped keep him steady, gripping his thighs just above the socks, claws prickling into his ecto.

‘stars, i could get used to this.’ He thought as his breath hitched and his pussy twitched in time with the rocking. Watching Red slowly lose himself below him was new and exciting and it made his magic rush. He knew Red could snap him like a twig if he wanted to, yet here he was, the big bad monster coming undone under him. Devouring him with blown-out eyelights while he gripped onto his thighs as if his life depended on it.

“h-having fun, red?” Sans teased, rocking a little harder and making Red grunt and let out a deep whine.

“f-fuck yea’, sweetheart.” Red grunted out between breaths, grip tightening and sockets narrowing. “yer so fuckin’ hot i could just eat ya right up.”

Sans believed him. The hunger in Red’s eyelights looked like it would draw him in and never let go. It was intoxicating.

But he needed more.

Frantically, Sans lifted himself up and started tugging on the hem of Red’s shorts, trying to get his dick free. Red helped by lifting his hips up a bit, letting Sans pull his pants down. His cock sprang out, hard and leaking precum, the veins throbbing in time with Red’s soulbeat. Sans could feel his mouth water at the sight, wanting a taste.

But that would have to wait another time because he desperately needed Red in him. Red must have shared that opinion, cause he guided Sans back down as he started rocking his member into Sans’ folds, slicking himself up. The heat of their magic touching had Sans’ head thrown back as he let out a moan that would make him blush like a blueberry if he wasn’t so focused on how good he felt. Red’s dick twitched harder as heard that.

“fuck me, sweetheart. yer gonna make me jizz before i can properly fuck ya.” Red growled out, his grip going to Sans’ waist, pressing him harder down onto his dick, but stopping the movement. They were both panting hard. “an’ i don’ want dat. wanna enjoy ya looking so fucking good fer longer. cause ya look like a million G snack sansy~. i wanna enjoy ya completely.”

The more Red talked the hotter Sans got, trying to continue rocking into Red but his grip was like iron and Sans couldn’t budge an inch. A desperate whine left his teeth as he gripped Red’s hands, not pushing them away but showing just how desperate he was to continue.

“heh, want more sansy~?” Red asked, his smirk sharp and predatory. All Sans could do was nod desperately as his hips continued to twitch. “i’ll let ya ride me all ya want if ya promise me to dress up like this again.”

Sans’ sockets spread wide, blush intensifying, as he froze up. Red wanted what?

“come on, sansy. one tiny promise. just for me.” Red practically purred out, hips thrusting up and catching Sans by surprise, making the smaller monster’s breath hitch.

Sans could barely think. He wanted so badly to cum, but he wasn’t even close yet. Red knew how to rile him up until he was really desperate and this was turning into one of those times. But he hated giving promises… though maybe this one wouldn’t be that bad?

Red’s hands squeezed Sans’ hips a bit harder, making the smaller monster focus back on Red. Red’s expression softened as he looked up at his tiny mate. There was understanding in those eyelights, but also an unspoken promise that everything will be ok.

“p-promise.” Sans whispered out, keeping eye contact with Red.

The bigger monster smiled up at him and then, without warning, lifted him up and impaled him onto his member, hilting in one trust. Sans gasped out, phalanges digging into Red’s jacket and head thrown back, as he felt the burn of the stretch, his walls trying to adjust to the sudden intrusion. It hurt but felt so good at the same time. He needed something inside him so bad and now that he was filled all he could see was stars.

Red groaned as he felt Sans’ pussy squeeze him, the entrance tight around him. Sans’ knees shook as he tried to get used to the sensation. He was used to Red’s girth, but usually Red stretched him a bit before hilting like that. The bigger monster knew it and waited, letting Sans adjust so he could start their play for real.

A few moments later, Sans started breathing again, and Red decided he waited long enough. Still grabbing Sans’ hips, he lifted him up and slammed him down again. Sans moaned out, tears starting to gather on his sockets. He wouldn’t be able to last long if Red continued to go this rough. And he was more than happy to let him.

Regretfully, Red stopped again as he bottomed out. Sans whined desperately, needing him to move. He rocked pathetically in place a bit, trying hard to get more friction but it wasn’t nearly enough.

“heh,” Red chuckled as he relaxed his hands around Sans’ hips, “yer gonna have ta work for it sansy. ya did say dis was a surprise fer me, right?”

Sans’ sockets snapped wide in shock. Red wanted him to work?! In this position?

He stared down at himself, seeing the outfit and how it displayed his chubby ecto perfectly. Socks pressing into his thighs, making them bulge a bit where the lace pressed into them. And he could see Red’s dick deep inside his ecto through the open space between the skirt and sweater. With the look Red was giving him, he could see it all too. And he was practically salivating over the view, smirk sharp and predatory as his eyelights roamed over Sans’ body. It made his body heat up with a need to move.

With a gulp, Sans nodded his head and slowly rose up, thighs shaking. They both let out a hiss at the renewed friction, Sans’ pussy clutching at Red’s member as if he tried to keep it in. Sans was only halfway up when his knees gave up and he fell down, hilting again. It made them both moan deeply. Sans from Red’s dick hitting deep, right into his sweet spot. Red from the squeeze Sans’ pussy gave when he fell. Taking a few calming breaths Sans rose up again and this time he managed to slide down without his knees giving in. A few more shaky ups and downs and he had a rhythm going, Red hands hovering under his tights, not helping to move him but staying there so he wouldn’t fall.

It felt incredible. Sans looked down at Red, watching for every change in expression as he moved. He could tell Red was looking at all of him, so he made sure to keep his hands pressed close to his chest, gripping the sleeves as he bounced on Red’s dick. One hand was pressed over his teeth as he tried to keep his voice quiet, trying to hear Red’s grunts and moans. It was really intoxifying.

Suddenly, Red growled and gripped harder onto his thighs, his claws ripping holes in the thin fabric.

“yer going too slow sweetheart.” He hissed out, a frustrated blush spreading over his cheeks and neck and his joints glowing harder. Sans could even feel Red’s dick twitch inside him.

With a vicious smirk, Red pulled Sans up, leaving only the tip of his cock in, then dropped him down, hard and fast. Sans cried out, breathing getting faster as tiny desperate moans left his teeth, his hand unable to stop them. Red continued, pace fast and getting faster as his dick twitched and Sans’ pussy spasmed. They were both getting close. Sans could feel the knot in his belly get tighter and tighter as his pussy was slammed into, and Red’s cock felt like it was leaking more and more inside him. Their combined fluids making an obscene sound every time Red slammed Sans down onto him.

Sans could feel his thighs slap onto Red’s pelvis every time he was brought down. That combined with Red’s phalanges and claws digging into his ecto flesh was guaranteed to leave bruises. He probably won’t be walking for a while. But he could barely think about all of that as the heat spread and the knot in his belly neared bursting.

“r-red!” He stammered out between Red slamming him down, trying to tell him he was close.

“i *huff* know, sweetheart.” Red growled out, breathing even harder than Sans was. “ya can cum sansy. come on. let go and cum for me like a good boy.”

Sans didn’t need more encouragement than that. With a loud scream, skull thrown back and both hands gripping onto the sweater, Sans came around Red’s dick, pulling it in deeper. Red grunted, pulled Sans up a few more times to drag out his climax and then bottomed out as deep as he could, letting go as well. Sans could feel thick warm cum filling him up, his pussy twitching and milking it. His ecto was starting to feel like it was expanding from everything and it felt like bliss.

When Red finally stopped coming, Sans slumped forward, big hands catching him and petting down his skull and back. Gently, he was lifted up off the member, making a lewd popping sound when it was pulled out, followed by the feeling of their combined fluids leaking out of his entrance. Sans shuddered a bit, feeling empty but satisfied.

Red pulled him up, laying him down on his chest as he continued petting over his back and belly, leaning down and leaving skeleton kisses on top of his skull. Sans snuggled into the broad firm chest as he felt sleep crawling over him, body feeling tired and satisfied.

“wanna clean up, sweetheart?” Red whispered between the kisses, unsure if Sans was still awake.

Sans just mumbled out a no, barely making any sense even to himself, but it only made Red chuckle and pull him tighter against himself as he covered them both with a blanket.

“‘kay sansy, after a nap.” Red chuckled and snuggled into Sans, hands resting over the exposed ecto under the blanket, making them both feel warm and content as they drifted off.

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And done! :D

Hope you all enjoyed! This really got away from me and ended up over 2.8k words @_@

The tree asks just combined so nicely and I couldn’t resist XD

I’ll be posting all of the writing for these on AO3 soon, just gotta figure out a good title.