sum. trying sounding with sukuna for the first time
⊱ ۫ ׅ ✧ cw. sounding, oral (m receiving), bondage, slightly dom reader maybe, dirtytalking (use of the word pisshole once this is your warning)
⊱ ۫ ׅ ✧ an. the smut always HAS to be a little gross....
Like many things, it had started out as a joke—the two of you laughing at some random insane kink.
Then one night, curled next to him you searched up porn—out of curiosity you claimed.
Dozens of thumbnails of meta rods stuffed inside penises popped up… and by now your curiosity had infected him too.
The first reaction from both of you was expected—visceral, averse.
But you started watching porn of it more and more, until finally you admitted… you did find it kind of hot.
This was your effect on him; because soon after, his own cock started stiffening while watching those videos.
The idea had settled in his head thanks to you until he finally confessed he was intrigued by the idea enough to try it.
"Intrigued" was putting it lightly—for days before that confession he was consistently jerking off to the thought of you sticking something up his dick.
And now he's ended up here—seated on a chair completely naked, hands bound behind him, ankles tied to the chairlegs, burly thighs spread.
He's a bit quieter than usual as he watches you pick up one of the flexible, long metal rods... with what seems to be a handle with buttons attached to the end.
"They're all sterilized—and the lube is too, so you won't have to worry about a UTI," you reassure him. "Also this is the thinnest I could find with a vibrator attached."
"…A vibrator?" he repeats hoarsely.
"Mhm, it's supposed to feel really good… but I'll only turn it on when you're ready."
Yes, he did want to try this, but anyone would be daunted by the idea of having something up their urethra for the first time—not to mention the whole set up looks like he's about to be tortured.
"I also got the one that's a bit ribbed so you can really feel it going in," you inform him, snapping open the bottle of lube to dispense some of the clear substance. "Because if you're gonna do this, might as well do it right."
Sukuna would have gladly settled for half-measures for his first time, but he's already here.
Tied up because you told him that if he moved it would really mess things up—and with a bit more probing he got you to shyly admit you kind of really found the idea of him being restrained hot.
The latter was the reason that convinced him—even if it made this whole thing even more intimidating.
Finished coating the sound with as much lube as you can, you inch forward on your knees till you're between his legs.
Your eyes flick up to him. "You ready? If you're not, that's o—"
"Do it," he cuts in quickly. Before adding, softer, "I trust you."
You don't say anything, but offer a small nod.
Looking down, you hold his flaccid cock from where it lays against one of his thigh tattoos.
"Tell me if anything hurts."
Sukuna nods. He's maybe never felt as vulnerable as right now, watching keenly as you bring the small tip to his slit.
The first thing he feels is a pressure.
He bites in a hiss as it pushes into the hole.
Once its just barely in, you pause to peer up at him. "Is it okay?"
"Yeah, just feels a little… weird."
Weird is an understatement.
As you focus again, you slowly let the rod slip in—not even requiring much pushing on your end; the toy seems to just… slide down the canal.
"Look, you're taking it so well," you murmur.
He is looking—at the metal rod spearing the tip of his dick—and honestly, the sight is so wrong that somehow it starts to send blood flowing down to his cock, slowly filling up the soft tissues.
You work carefully. With a precision that he's not sure anyone else would ever bother to offer him.
Carefully sliding the rod further in, adding extra lube to the length that has yet to go in, intermittently flicking your gaze up to check on him.
"What's it feel like?" you ask when you're about three-fourths of the way down his shaft. You can feel the toy through the flesh under your fingers.
Sukuna's gritting his jaw without even realizing, chest rising and falling in deepening breaths.
He swallows. "Like something being put where it isn't supposed to be."
He lets out a shaky breath.
"And it feels good… in a weird way. I don't even know how it feels good."
With every ridged edge dragging gently against the walls of his urethra, an almost overstimulating sort of pleasure sparks from around his tip.
"Where does it feel best?" you whisper. And before he can answer, you brush a finger around the ridge of his glans. "Here?"
Sukuna jolts. His swelling cock feels much more sensitive than usual.
"Yes, fuck— right there."
You hum. The rod slips deeper.
"And what does it feel like," your fingers drop to skim around the base of his shaft, "down here?"
"Just… pressure. A dull, deep pressure."
The sound has nearly reached the base. You watch his muscles flexing and tensing under tanned skin, entire body wound tight.
"Should be almost there," you murmur.
You peer up at him curiously. "Oh, you don't know?"
Sukuna doesn't know if he should be worried, but he's definitely getting there. "Know what?"
"You can reach the inside of the prostrate through here."
Admittedly, this is new information to him.
"…How do I know when you've reached it?"
You laugh lightly. "Oh, you'll know."
Just a little deeper—then the toy hits the slightest resistance.
Sukuna's inhale splinters into something jerky and sharp—he almost chokes on his breath.
"Think I found it," you tease with a small grin. "…This is where the real fun begins."
You move the rod a little and his brows scrunch, mouth falling open. "Oh—shit—"
He's not sure what kind of pleasure this is—just something deep and intense and untouched.
"Want me to turn on the vibrator?"
"Yes," he says a little too quickly.
You click the button—and the noise he makes almost sounds like he's in pain.
Sukuna's at a loss of words—the sensation is so overwhelming that the pleasure borders on painful.
You watch him slowly lose every last ounce of control as you bend your head and stick your tongue out to lick a long, wet stripe up his veined length and around the edge of his swelling tip.
A full body shudder runs through him as he pants.
You do it again, peeking up at him—and he catches that glint of something a bit darker in your eyes.
Placing sloppy kisses around his flushed cock, you move the vibrating rod back and forth slightly as your voice drops lowering, dripping with something filthy.
"You like this? You like it when I stuff your pisshole?"
For some reason, his cheeks are warm, wrists straining against the restraints.
"Y-yes, I do," he manages.
"Mmh, look how pretty your cock looks like this."
His thighs are trembling—and when you slowly start fucking the rod in and out of him he whimpers.
Actually whimpers—a high, pathetic little noise.
"If only people knew how much you love getting violated by me," you whisper.
Then his orgasm crashes into him like a truck—abruptly and intensely.
With the rod vibrating deep inside him and your tongue lapping around where it's inserted, he cums harder than ever before—though ironically, the load of semen has nowhere to go.
It builds and when his orgasm finishes with one last contraction around the toy sheathed inside, you lift your head away to look at him as you click the vibrations off.
Cheeks flushed, lips parted, eyes hazy, chest heaving.
"Ready for me to take it out?"
And slowly you begin to slide it out, centimeter by centimeter from his softening covk,
Every once in a while he'll shiver from the friction inside.
The metal comes out partially coated in cum—the rest of the milky fluid leaks from his slit.
Except the semen is just barely tinged pink.
"You're bleeding a bit," you tell him, lifting the wound to your mouth to lick it clean. "Probably just a mild abrasion. Completely normal, especially your first time."
Sukuna's still recovering, trying to process whatever just happened, so he just dips his chin in acknowledgement.
"It's also normal if it feels like you're passing razor blades whenever you pee for about the next day or so."
That makes mild alarm cross his face, but you keep going.
"But it'll be easier next time and after that, all pain should completely go away."
You look at him like he's said something strange.
"I ordered a whole set of sounds, so you can work up to the biggest one."
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