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Ren… Ren…
The Japanese vigilante groaned as he tossed and turned in his sleep, brows furrowing slightly as the voice in his head tried to pull him awake.
Ren wake up!
Ren's eyes fluttered open slowly as he thought annoyed, What?
Get up! Castor needs you!
Ren immediately shot up in bed, looking around bleary eyed. He had stayed in Castor's home, and like the voice in his head said, he didn't see Castor laying next to him.
He got out of bed slowly, pushing the blankets back and standing up. It was dark in the room as he grabbed a robe to throw on and cover his naked body, brushing his long black hair out of his face. As he padded out of the bedroom, he attempted to turn on a light… but it didn't turn on. Ren looked at the light in confusion, flicking on and off, but no light came.
Okay. This is creepy. Ren thought as he continued to walk through the seemingly never ending home. His eyes were adjusted to the dark, but even so, he moved carefully. "Cas?" Ren called out in a hoarse voice, walking down a large, long hallway, "Cas?"
At the end of the hallway, Ren saw something move in the dark. It looked long like a snake or an eel, moving quickly in the shadows like it was slithering into a room. Ren stopped, heart starting to pound in his chest with fear. What was that? He thought, feeling the hair on the back of his neck stand up as he moved slower, more carefully.
As he got closer and closer to the end of the hall, his heart was beating faster and faster in his ears. He licked his dry lips as he finally made his way to the open door, standing in the doorway, "Cas…?" His dark eyes traveled around the room, widening as he saw a mass of what looked like shifting tentacles shrouded in shadows.
Holy shit! He thought as he stepped back, the hairs on his arms standing up as he felt the urge to run. The mass of tentacles took up half of the large, open room. Ren shivered in fear as the mass shifted and moved, revealing six glowing red eyes. The eyes locked right onto him, narrowing on him and making his breath catch in his throat.
He wanted to run. He wanted to turn and get out of there as fast as possible, but he felt frozen on the spot. He stared up at the large creature, mouth hanging open as he continued to tremble. The creature let out a loud, long animalistic noise that shook the walls. It sounded like a mix between a whale and a growling wolf, sending Ren into a panic as he got ready to turn and run.
Don’t run away. The voice said quickly, making Ren pause.
What? Do you not see this thing?!
That “thing” is Castor.
Ren’s brows furrowed in confusion. This is Castor? It can’t be…Then he remembered what Castor had said to him.
“I’m not exactly human, Ren…”
Is this what he meant? That he is…this? He didn’t even know what this was.
If you run, he will chase after you. He doesn't know what he’s doing Ren .
Okay…What should I do then? Because he’s looking at me like he wants to eat me.
Approach slowly. Speak softly. Try to calm him down.
Ren took a slow breath, trying to calm his racing heart and push his fear down. This is Castor. This is his boyfriend. It’s gonna be okay. He won’t hurt him…right?
He started moving slowly, speaking to Castor with a soft voice, “Hey Cas…it’s okay. It’s gonna be okay.” He reached his hand out, fingers trembling as he got closer, the red eyes watching him like a hawk. The tentacles shifted and moved around in the background, one large tentacle moving towards Ren, lifting up. Ren paused in his steps, only a foot away as he slowly reached out and touched the tentacle, petting it.
It felt slick and cool like dolphin skin and Ren gave Castor a tentative smile, “Hey baby…having a bad night?”
Castor let out a low humming purr as Ren gently petted his tentacle, his red glowing eyes shifting to a calming blue. The mass shifted and the eyes got lower, as if he was crouching down, and his eyes were closer to him, the tentacles shifting and curling around him. They started to slide around his legs, arms, touching his hair and caressing his face. Ren felt himself slowly begin to relax as it seemed Castor was calming down, “That’s right sweetheart, it’s just me.”
The cool slickness of the tentacles against his skin sent a shiver down his spine, but not out of fear…it felt… good. Almost…erotic…Ren blushed at his wayward thoughts. No! Don’t think like that! Castor needs you!
But even with him scolding himself, the tentacles slid up his inner thigh and the slight stickiness of one at his shoulder pulled his robe off it. As the robe opened and exposed his naked body, Ren flushed deeper, trembling as the curl of the tentacle brushed his nipple. “Ah…” He gasped, making Castor’s monstrous form flinch back slightly in surprise before he got closer, almost curiously.
The tentacles slid around his body, sending goosebumps along Ren’s skin. God, why does it feel so good? Ren thought as he bit back a moan. The tentacles…the large, monstrous form…it was tickling the deep seated kink he had only indulged on the darkest, loneliest nights. As a large tentacle twice his body size slid between his legs and brushed against his cock, he sucked in a breath as heat coiled in his stomach. Blood started to rush to his cock as his eyes squeezed shut.
Oh fuck, that tentacle is huge…
What are you doing?! Focus!
I’m trying!
The large tentacle brushed against his cock again and Ren felt his mind cloud with lust. He gasped and lightly thrusted in the air to create friction as his cock throbbed, “Cas!” He moaned, trying to thrust against the tentacle. Castor let out another purring hum, his six eyes turning from blue to a pastel pink. The sound of sniffing came and Ren wondered if Castor was sniffing him.
Does he even have a nose in this form?
His thoughts stopped as Castor let out a deep growling sound and Ren stepped back quickly, the flush going down his neck as he looked up and realized just how much bigger Castor was compared to him. He was basically a bug to the monstrous form and if Castor wanted to, he could kill Ren easily.
Or ravish me…
Ren tried to shut those thoughts out, but they were becoming louder the more he looked up at Castor and his tentacles in awe. His heart started to pound as he pictured them inside him and he knew then and there he was a kinky freak for getting turned on by his boyfriend's monster form.
God, he's never gonna let me live this down. Ren thought as he tried to wrap his robe around himself again from embarrassment to hide his rock hard erection now standing between his legs.
Before he could tie it closed, however, a tentacle grabbed the back of it and yanked it off with so much force, it sent Ren tumbling backwards onto his butt with a yelp.
He looked up at Castor's pastel pink eyes with surprise as a large tentacle slithered to him and between his legs to rub against his hard cock. He twitched in pleasure, moaning softly as he felt the slicked skin of the tentacle slide against him. It was cool against the heated skin and his head fell back as it rubbed against him rhythmically.
He thrusted against it with another moan, lust wracking his body as he looked up at the eldritch horror through his lashes, "Cas… I…" He let out a mewling moan as his face got hot with blush while Castor rubbed the tentacle against his trembling body.
Fuck it feels so odd but so good. I want more… I want…
As if reading his devious mind, Castor purred and picked him up from the floor, a large tentacle wrapping around his middle and into the air. Ren gasped and clutched the appendage, dizzy with arousal as more tentacles wrapped around each wrist and ankle, holding him spread eagle in the air.
Ren had trouble forming words as his darkest fantasy seemed to be coming true as two small, thin tentacles came to tease his dusty pink nipples. A shock of stimulation made him cry out as the tentacles latched onto his nipples and it felt like they were pinching and pulling the small buds.
His cock twitched in need, "Cas! Fuck!" He wanted him to do more… He wanted his body captivated by his boyfriend. He wanted to be completely at his mercy.
" So beautiful … "
Ren's eyes widened at the garbled, demonic voice that rumbled from Castor's form. He can speak?! "C-cas…?"
" Ren…you are hard …"
Ren flushed, limbs trembling as he nodded, eyes hooded as he whimpered, "You… Made me hard, yes…"
" Does this form please you ?" Castor asked, sounding amused as he made his tentacles continue to play with his nipples.
"Every form of you pleases me…" Ren admitted in a hoarse whisper, causing Castor to purr in response as more tentacles began caressing his skin.
Heat pooled in Ren's lower stomach, his teeth sinking into his lower lip to stifle his moans as his body was stroked and petted. One of the thin tentacles at his nipples slid down his torso slowly, teasingly, until it brushed against his weeping cock. Ren’s hips jumped as he let out a needy mewl.
Ren! Get a hold of yourself! The voice snapped.
Ren pouted and snapped back, Shut up! I might never get this chance again!
You can’t be serious-
Ren shoved that voice down as he felt the tentacle wrap around his thick, throbbing head and started stroking him slowly, the long appendage wrapping all the way down the base firmly like a vine. Then it started pumping him and Ren cried out in pleasure. “ Such filthy sounds… ” Castor rumbled in amusement, his large eyes watching Ren with interest. The japanese vigilante knew he should be more embarrassed or possibly scared…but this was Castor. This was his star, his lover and friend…he would never hurt him.
Ren allowed himself to relax in his boyfriend’s hold as his eyes rolled back in his head with need, letting go and falling into a submissive state as he whined out, “Please! M-more!”
Castor let out what seemed like a dark chuckle as he continued to stroke his leaking hard on, purring like a very large cat as he did, speeding up more and more. Ren let out noises of pure ecstasy, head rolling back and forth as he squeezed his eyes shut, mouth hanging open.
“ If only you could see how pretty you look…my little human toy. ” Ren shivered as another tentacle wrapped around his throat and his heart stuttered with slight trepidation as it squeezed. His coal black eyes shot opened, mouth opening in surprise to only have another tentacle slide into his mouth, invading and thrusting slowly in and out like it was a cock.
“Mmfh! Mmm!” Ren moaned around the slicked up tentacle, tears springing into his eyes as it fucked his throat. It didn’t taste odd, in fact, it tasted a lot like Castor. Ren stared into Castor’s eyes as the monstrous form continued to stroke him and fuck his throat, purring and humming loud enough to shake the foundations of the room.
“Such a warm, wet throat…you like it when I use you, don’t you?” Castor growled out and Ren nodded as he did his best to suck on the appendage while it slid in and out of his throat, deep to the back of it. Tears streamed down his cheeks as he breathed through his nose, letting out a muffled whine as his cock was stroked faster and faster. He arched up in Castor’s grip, feeling his pleasure spike higher and higher until his eyes widened as he felt a tentacle tease his hole.
He glanced down to see a black tentacle that was bigger and longer than his leg, trembling with anticipation. Fuck, it’s huge! Ren thought, slightly afraid. But, as soon as the fear came, it disappeared as he felt the tentacle probe his hole. Lust overcame his entire being as the tentacle in his mouth slipped out and the large tentacle at his opening started to slowly push into him.
“Fuck! Cas! I-it’s so big!” Ren yelped in a husky voice.
“But you enjoy it.” Castor growled low at him as his eyes narrowed, the tentacle around Ren’s cock slowing to prolong the vigilante's rapture, “You’ve fantasized about this. I can see it in your mind. You want to be used by me, don’t you? You want to be filled up and fucked out, don’t you?” As Castor spoke, Ren’s nipples were pulled and the tentacle around his throat tightened more. Ren gasped, trying to catch his breath as his face flushed deep red.
“You like feeling helpless…at my mercy…” Castor continued, voice turning into a purr as he loosened his grip on Ren’s throat as his large tentacle finally slipped past the tight ring of muscle in his lover’s opening. Ren gasped for breath before letting out a mewling groan, tears spilling as he choked out, “Yes, yes! I admit it! I love this! I love the feeling of tentacles fucking and teasing me! I get turned on by the fear of you breaking me!”
Castor hissed in pleasure, wiggling his tentacle deeper into Ren as the dark haired man cried out and sobbed through his moans. His opening slowly loosened up until it was fully seated inside him, filling him fully and pressing hard against his prostate.
Ren’s thighs shook with euphoric delight, mind blanking as it slowly slid in and out, making him feel full with each thrust as his cock was stroked in time. His head fell back as a chorus of wails and whimpers fell from his lips.
“I could break you if I wanted to…but I want to keep my toy intact, don’t I?” Castor purred in a deep, hypnotic, teasing voice. Ren sobbed as his prostate was hit again and again as he was fucked, “C-cas! Do what you like to me! Break me! Fuck me! I’m your toy…I’m y-your fucking…toy!”
Ren arched in debauched rapture as he screamed out, white hot flashes filling his eyesight as he came hard all over his stomach as Castor’s slick tentacle. He whimpered and gasped as he was flipped over in the air, ass up as Castor continued to fuck Ren’s hole. Ren could swear he felt it slide so deep it was in his stomach. He continued to cry and whine as the big black tentacle went faster, in and out of him.
As it moved and overstimulated Ren’s bundle of nerves, the black haired vigilante screamed as tears flowed down his cheeks. His voice broke with need as his body shook, Castor growling as he milked his orgasm.
He was lowered to the floor, palms and knees hitting the floor, limbs so weak that he couldn’t hold himself up. He laid limply, eyes rolled back in his head as he was fucked hard and fast. It felt so good it nearly hurt…body thrumming with heated desire as his cock started to get hard again.
Fuck, I just came…and I’m already getting hard again!
Ren whimpered and squirmed in Castor’s hold, trying to get friction on his cock even as his ass was used. He looked back as he heard a dark chuckle and his teary eyes widened. Another tentacle slid against his opening, the two tentacles now alternating in filling him up and he let out a loud cry.
“FUCK! CAS! I-I C-CAN’T-!” He sobbed out in debauched pleasure. He felt a tentacle stroke his face gently, caressing as Castor purred warmly, “You can, my sweet toy. You’re taking me so well…”
Ren trembled, eyes closing as his heart melted at the praise, pressing his forehead to the cool marble floor as he took the alternating tentacles. They stroked and curled within him while another slid beneath him to rub against his hard length. With the combined sensations of the friction on his cock and the alternating thrusts of the two tentacles in his opening, Ren’s mind was blank and fuzzy with lust.
“I’m close…” Castor grunted in his demonic voice, speeding up his thrusts and rubbing, making Ren’s breath catch in his throat, “P-please…inside! F-finish inside!” He thrusted against the tentacle at his cock, desperate to cum again. Castor growled loudly and went with inhuman speed, making Ren cry out.
With a roar that echoed through the house, Castor’s tentacles swelled and filled Ren with hot cum deep inside his hole and covered his chest and stomach. The feeling of cum filling him up and dripping out onto his thighs tipped Ren over the edge. He gave a wordless cry as he arched his back, straining against his boyfriend’s hold as he came on the floor.
His mind felt fuzzy, his vision blurring from exhaustion as his wrists and ankles were released and the tentacles inside him slid out. More cum spilled from him and he flushed red with embarrassment. His body trembled as he laid limply on the floor, his lower half throbbing and his throat feeling raw from crying out. He caught his breath, looking up with bleary eyes as he saw the shadowy mass that was Castor shrink down, tentacles disappearing.
A tired smile came to his face before he closed his eyes, desperately needing sleep after that.
Castor blinked, multicolored eyes looking about in confusion as he stood naked in his constellation room. What…what happened? He thought, feeling a bit sweaty and out of breath. It was weird…he never felt like this after going eldritch. He sighed and ran his hand through his pale hair. Then he looked down…and saw Ren, naked and covered in…
Fear rose in his chest. Oh Gods…oh no no no…I didn’t…d-did I…? Castor immediately ran over to Ren’s prone body and he checked his pulse. He sighed in relief as he felt the steady beat of his heart at the base of his throat. Thank the gods he’s not dead! The pale haired vigilate quickly took stock of his lover as he moved the man to lay on his back, smoothing back his long dark hair.
Bruises on his wrists and ankles…bruising on the neck…
He looked lower and blushed dark red. Ren’s thighs had residual cum on them as well as on his stomach and chest. Skin flushed and sweaty…
For a second, Castor had a flash of Ren’s lust-addled eyes and his moans echoing in the room.
His tentacles wrapped around him…
Oh shit…did I force myself on him?!
Castor could only remember bits and pieces, anxiety curling in his chest as he picked Ren up with ease, “I-I’m so sorry Renni…” He knew the passed out man couldn’t hear him, but he didn’t know what else to say at that moment as he used his speed to take Ren to the bathroom to clean him up with a wetted warm washcloth.
As soon as he was done cleaning the man up, Castor carried him to the bedroom and laid him down on the bed. As he tucked the covers around him, a flash of a fuzzy memory came to his mind of one of his tentacles pulling off Ren's robe.
He rubbed his eyes, groaning as a flush came to his face. He didn't know what the hell came over him, all he remembered was having an awful nightmare about Drako, and now he was nursing his naked boyfriend that he might've forced himself onto?
"Fuck, I'm so sorry.." Castor said in a tiny voice as tears welled up in his eyes. What if he permanently hurt Ren? What if Ren was scared of him now?
Castor put his head in his hands as he crouched beside the bed, tears spilling forth. What have I done?
He stayed that way until morning came, lost in his own anxious thoughts, continually berating himself on the inside for losing control like that around Ren.
As soon as morning came, Ren's black eyes opened slowly, body throbbing painfully. He let out a loud groan as he tried to move and Castor's head shot up, teary eyes wide as he immediately put a hand on Ren's shoulder, "Don't move. You're probably gonna be in a lot of pain for a while…"
Castor watched as Ren winced and slowly laid back against the pillows with a whimper, tears filling his eyes as he said in a tight whisper, "Renni… I'm so so sorry baby…"
Ren's brows furrowed, brain still sleep addled as he looked at Castor's crying face, "Why… are you apologizing?" He reached up to cup Castor's cheek, only to have the smaller man flinch back from him.
Ren felt his heart drop at that, especially after Castor continued to cry, "My star… Talk to me, please. What's wrong? Why are you sorry?"
Through his tears, Castor sobbed out, "I'm sorry f-for forcing myself on you. Please don't hate me! I-i didn't realize… I can't remember anything but bits and pieces and I-i know that's n-no excuse… b-but…"
Ren's confusion grew until he cut him off, "Cas… You didn't force me." He tried to sit up, but the pain in his lower half hit him again, so he took Castor's hand in his, "Look at me."
Castor's eyes lifted, full of tears as he looked at him full of sorrow, making Ren's heart ache as he said, "You did not force anything on me. Yes, I was a bit scared of you at first… but once I realized that form was you, I was okay. In fact…" Ren felt a blush come to his cheeks as he admitted, "...I enjoyed it. Every minute of it."
Castor sniffled, eyes widening in surprise, "You… enjoyed it?"
Ren nodded, smiling softly, "I was so turned on and you made me feel so good. So good that I came twice ."
Castor didn't know what to say. He knew the man was turned on by the tentacles, but he thought that Ren only enjoyed them as long as his mortal body was attached. To find out he was turned on by his monstrous form… It was shocking to hear.
Well… maybe not too shocking. He always had an inkling that Ren was a bit kinkier than he let on.
Castor tentatively smiled through his tears, wiping at his eyes as he sniffled, "You came twice huh?" He couldn't help the giggle that bubbled up from his chest.
Ren flushed a deep red as he pulled Castor closer, hand cupping the pale haired man's face, "I did. Honestly it was the most mind blowing sex I ever had. Guess I can check off that fantasy from the list."
Castor couldn't erase the proud grin from his face as he moved to curl up next to Ren, "Heh, you should've shared your fantasy with me sooner. When I came to, I nearly had a heart attack thinking I killed you!"
Ren snorted, "I trusted you. Even with how large you were, you seemed to be very careful with your human toy."
Castor blinked as a fuzzy memory of Ren crying out blissfully that he was Castor's little toy surfaced to his mind. He swallowed hard as he felt his stomach coil with pleasure. Damn, if only I could remember everything!
"I would've loved to have remembered what you looked like… I bet you looked so sexy, held up and helpless…" Castor purred as he smoothed back Ren's hair, causing the larger man to bite his lower lip as he said huskily, "Perhaps we can try that again sometime… preferably after my ass is healed and I can walk straight."
Castor laughed at that and gave Ren a sweet kiss on the lips, "Deal. I love you so much Ren."
As they settled into a close snuggle, Ren couldn't help the smile that came to is face as happiness warmed his heart, "I love you too, my star."