A/N: I'm not really going to write a summary for this one, because I feel the title is somewhat self explanatory. Here we are, further along in their relationship, and we see the changes Dom and sub have gone through. Kurt feels more free to be the Dom he normally is, a bit more extreme, a little more sadistic, playing off the fact that Sebastian's sub side has developed significantly more as time goes on. This is something kind of unexpected for Kurt. He obviously didn't expect them to get to this point, and he can't help but wonder why Sebastian wants this...or if this milestone that they've reached is actually a good thing. We also get a peek at Kurt's backstory, and a hint as to how he ended up this way. (P. S. To date, I think this is the best chapter in this series that I have written. Please let me know what you think. Also, warning for mention of Blaine, more extreme bondage, and the use of an anal hook, which is not as disgusting as it sounds, I promise xD)

Kurt watches with eyebrow kinked as Sebastian applies a midnight-hued polish by Dior to the nail of his middle toe. Sebastian leans forward, tongue trapped between his teeth at the right corner of his mouth as he paints, careful not to get a drop on Kurt's skin. This bottle of nail polish is probably the most expensive cosmetic Kurt currently owns, and though he appreciates his sub's expensive taste, in all honesty, he wouldn't care if it cost one dollar or a hundred. He relishes this. He'd forgotten how much he missed having something like this – quiet Saturday nights spent at home, no need for talk or television or fancy dinners. Or clothes, for that matter. Just burgers and fries, and an intimate, indulgent activity – a massage, a brush through his hair, polish on his nails.

Younger Kurt Hummel might disagree, preferring to go out on the town with his friends, sing at Callbacks, or channel his inner gay bar superstar, but with as much struggle as that version of Kurt went through, he hadn't really gotten a bite of real life, hadn't sunk his teeth in far enough to taste blood. He didn't understand how cathartic this was – how necessary.

Kurt and Blaine had moments like this, but not too many. High school and college were such a whirlwind time, filled with non-stop hustle and bustle, and friends who didn't seem to have homes of their own, opting to camp out on Kurt and Blaine's sofa, or the warmer spots on their floor, most of the time uninvited. They all went to the same school anyway; all had such parallel lives. At the time, Kurt didn't have half-a-mind to object. He and Blaine did have the requisite evenings in where they baked together, or broke out the fruit and cheese plate and watched a movie, but Kurt could count those on both hands, with a few fingers to spare. Everything else ended with calling up the gang and doing something together as a group.

That's how the sharing started. It's also part of how they ended up in the scene to begin with. God, sometimes Kurt wishes he could travel back to the past and say no, follow his instincts. But he was so God dammed eager to please.

So eager to keep Blaine, who Kurt felt slipping farther and farther away every single day.

But every choice in life comes with its good and bad outcomes. That choice ultimately brought Elliott into his life, and now Sebastian. Kurt's not sure that he'd be willing to trade either man for the life he had, the future he'd mapped out, considering how much of it turned out to be an illusion.

Since he can't go back, it's moot anyhow. No reason to linger on bad judgement calls.

Kurt and Elliott had something sort of like this, when Elliott subbed for Kurt in those spaces in between when he was getting over Blaine and trying to find himself, but similar isn't the same. Elliott didn't offer; he did as he was told. Kurt doesn't look at it as a negative thing. It's what he needed at the time. But when that time was over, and Elliott submitted to him out of pure want, their dynamic never changed.

Maybe that's because it was never meant to.

The closest Kurt came to having this was during the short span when Adam was his sub. But Adam, who originally entered the scene as a switch, realized quickly that he was, in no way, a submissive. They tried dating as a vanilla couple, but they both needed something the other couldn't offer, and neither one of them was amenable to sharing. So even though they enjoyed their time together, their relationship, as hot as it was, as passionate, wasn't destined to last. There was too much internal struggle, too much butting heads for control. They never lashed out because of it, never fought over it. They simply agreed together that they would be better off apart, and remained close friends.

It's the most adult relationship Kurt's had to date.

Kurt assumed something along those lines would happen between him and Sebastian. Sebastian seemed like such an alpha male, and he still does. Kurt doesn't think it's an act. Sebastian Smythe, in his own universe, is the epitome of large and in charge.

That changes when Kurt's around. Sebastian changes. And now, here they were, in Kurt's bedroom, with Sebastian kneeling at Kurt's feet, painting his nails.

And Kurt, for the life of him, doesn't understand why.

But having this relationship with Sebastian is beyond fantasy.

It's also extremely dangerous.

Sebastian dips the small brush into the bottle, pulls it back out, and moves on to the next toe, layering cool lacquer over Kurt's nail.

"Do you really enjoy doing this?" Kurt asks.

"Yes, Master," Sebastian answers, without reservation, and without looking up from his task.

"May I ask why?"

"You may, Master," Sebastian replies, his smart-ass grin secretive, but twisting his lips enough for Kurt to notice. Kurt smirks. That cocky grin seems engrained in Sebastian, inevitable when it makes an appearance. It's the one that gets Sebastian punished.

It's the grin that Kurt adores.

"Preppy…"

"I enjoy it because I love pampering you, Master," Sebastian says, impatient to give a true answer. "I enjoy it because I get to spend time alone with you."

Sebastian snickers.

"What?" Kurt snaps, but not harshly. He doesn't want Sebastian's grin to disappear at an assumption of Kurt's disapproval.

Kurt needs it to stick around so he has an excuse to play dirty later on.

Sebastian almost can't stop snickering to respond. "It helps that you don't have demon monster feet."

"So you like my feet, preppy?" Kurt asks, wiggling his toes.

"You do have very attractive feet, Master." Sebastian waits for Kurt to stop wriggling, then he places an open-mouth kiss to the top of the left one. He dips his brush back in the bottle, pulls it out, wipes off the excess on the lip, then moves on to paint the next unpolished nail. It's so thought out, so methodical. "May I ask you a question, Master?"

Kurt gazes down between his legs at his young sub, eyes glued to his work, but his face screwed into a mask partially made of worry. "You may."

"Why do you keep asking me questions like that, Master?" Sebastian cocks his head, eyes dancing up briefly to Kurt's face. "Why do you question my loyalty to you?"

"I'm not questioning it, preppy," Kurt says, the sigh that follows a combination of insecurity, and a reluctance to move forward with this conversation. "It's just…" Kurt kind of hates that he's about to explain this. Why does he always feel the need to explain things to Sebastian? Why can't he just blow him off like he would any other sub?

Kurt knows why. He knows why things are complicated for him now. But acknowledging it, when he can't do anything about it, would only make it worse.

Denial's not just a river in Egypt. As of late, it's the very blood that runs through Kurt's veins.

It disgusts him how Biblical that is.

"I mean, you're eighteen, you've got money out the yin-yang, you're gorgeous…" Kurt pauses for a second when a streak of color rushes up Sebastian's cheeks. Saying that wouldn't have put that blush there on the day they met, but now, every little compliment from Kurt makes Sebastian red in the cheeks. Sometimes Kurt finds any reason to compliment Sebastian just to see it. "You could be out, driving around with your friends, going to the movies, or…or hitting up bars with your fake ID, chasing after guys." Sebastian chuckles, as if that idea is preposterous, and Kurt's not sure if he's flattered or annoyed by it. "But instead, you come here every weekend, and you spend it kneeling on my floor, painting my nails, cleaning my toilet, or sucking my dick. Is this really how you want to spend your free time?"

"Yes, Master," Sebastian says, again, with no hesitation. "This is how I want to spend my weekends" – Sebastian blows lightly over Kurt's nails in between phrases, the stream of cool breath tickling Kurt's instep – "kneeling on your floor…painting your nails…cleaning your toilet…and sucking your dick." Sebastian sits back on his heels and looks up at Kurt, indirectly through his lashes. "I don't have a single friend whose company is worth a moment of the time I've spent with you."

Kurt's tempted to ask why. Kurt thinks he sees the reason. He thinks he's seen the reason over and over, and he doesn't want to mistake it. But once Sebastian says it, he can't take it back. He can only deny it, and Kurt can't subject himself to that.

"What can I do, Master?" Sebastian asks, more like a lover than a sub, that sultry, velvet quality in his boyish voice shooting like an arrow through Kurt's body, except instead of veering straight to his cock and making it throb, it takes a detour up to his chest and slingshots around his heart until his ribcage feels sore.

Kurt scoots down the bed. He plants his feet on the floor and crouches before his sub, whose eyes have drifted respectfully down, showing Kurt that he recognizes his place. That display of honest submission makes Kurt's heart pound against those wounds on his ribs, turning them from sore to piercing.

"I'm gonna hook you up," Kurt says, grabbing hold of Sebastian's hair and tugging to give him access to his sub's mouth, "and then you can suck me off. Hmm? How does that sound?"

Sebastian doesn't have an answer for Kurt, and if he does, Kurt swallows it immediately in a harder than normal kiss - one that brands, one that burns, one that doesn't leave Sebastian any room to say something he shouldn't.

Kurt either, for that matter.

"Get up on the bed," Kurt commands, stepping carefully around the young man on his knees so as not to smudge the fresh polish on his nails, "while I get what I need."

"Yes, Master." Sebastian crawls up on to the bed. He's different now from the boy Kurt met at his club back in September. Lacrosse, plus the addition of swimming and track, have added definition to his legs, arms, and back, and tightened his ass. He slinks across the mattress like a jungle cat - one that might be fierce in the wild, with sharp claws and teeth, but is nothing but a pussy cat here in this cage. But Sebastian's not trapped here. He comes here of his own free will. All Kurt has ever offered Sebastian is himself, and it's getting more and more difficult for Kurt to comprehend why Sebastian takes it.

Kurt doesn't use the hook on Sebastian that often. Sebastian doesn't understand why since it seems to hang from a place of pride in Kurt's bedroom. Several of them do, actually, each one more intimidating than the next. The one Kurt chooses is enormous in Sebastian's eyes, sends a cold shiver down his spine, but he doesn't care. Whatever Kurt wants, that's what he'll do, even if the extraordinary stretch from the humongous ball makes him feel insanely open and vulnerable.

But vulnerable around Kurt isn't the same as being vulnerable around anyone else.

Being vulnerable around the people in Sebastian's vanilla life is unbearable, which is why he does everything to avoid feeling that way.

Being vulnerable around Kurt is the first step to being used for his Dom's pleasure; humiliated for his delight; bound, beaten, and abused; but at heart, cared for. Always cared for.

The first time they used this hook in particular, Sebastian's body would not relax for Kurt. Sebastian's mind wanted to obey, but his body felt it knew better. Kurt spanked Sebastian raw, since that usually does the trick, loosening him up. After thirty minutes of open-handed slaps to the ass, Sebastian's cheeks were red hot, but his hole was still locked up tight. Kurt lubed the thing up to dripping, which made it difficult to handle, but Sebastian's body still wouldn't do it. It took Kurt distracting Sebastian, sticking his cock in his sub's mouth and commanding him to hold his breath, before Kurt could slip it in. The stretch with that huge steel ball felt incredibly intense, spreading him open wide, as if Kurt was trying to slide three fingers in him at once. But once the ball settled, his body registered its heft, its girth, the way it pushed open the walls of his rectum and didn't let up. When Kurt's done with the job of securing him, that hook will ensure that Sebastian doesn't move any more than Kurt wants him to, but while it rests inside him, unmoving, it's a torturous overload of constant pressure in the one spot that craves it, not letting up, not relenting, not moving. Just there.

And Kurt knows, which is why he takes his time tying Sebastian up, stringing the hook to a rope that he wraps around Sebastian's forehead, pulling his head back and stretching his neck gently. In this position, with Sebastian's head tilted back, the hook stays in place. Kurt uses the tail of the rope to bind Sebastian's arms around his elbows, then his wrists. Finally, he ties it off around his ankles, making Sebastian bend his legs at the knees to lift them. Kurt pulls the whole thing taut, the ropes rigged so that if Sebastian moves his head when he sucks Kurt's cock, the ball of the metal hook rubs against his prostate…and Kurt's going to make sure he moves his head.

For a boy who balked at the idea of being fucked until he met Kurt, prostate stimulation tips him straight into the abyss every…single…time.

And as a final touch, Kurt blindfolds Sebastian, taking away his sense of sight to focus him in on the feel, not only of the ball up his ass, but of Kurt's cock filling his mouth, demanding attention.

"How's that, preppy?" Kurt asks, pushing into Sebastian's mouth with a few shallows thrusts, then stopping to let Sebastian take over, knowing every bob of his head will move that ball in his ass, rubbing against the one place he needs to leave be if he's going to concentrate on pleasing his Master. But Kurt can't help himself. He's dying to see Sebastian pushed over the brink, forced to work against himself and make him cum beyond his control. "Do you like that?"

"Mmm-hmm," Sebastian mumbles, putting off the unavoidable for as long as possible.

Kurt smirks at Sebastian's pathetic attempt.

"You're gonna have to nod for me, baby," Kurt says. "I don't understand grunt language."

Kurt feels Sebastian swallow hard in anticipation, then nod, a weak, stuttered jerk of his head, but with the skillful way Kurt's rigged the ropes to be sensitive to movement, it's enough. Sebastian moans around the head of Kurt's cock as the smooth, steel ball slides a subtle inch, and from the first bob of his head pulling the ropes, driving the hook up, Sebastian almost loses it.

"Come on, preppy," Kurt says, pushing back on Sebastian's forehead when he doesn't move again. "You're going to have to do better than that if you're ever going to get unhooked."

Sebastian breathes out a few times through his nose, preparing himself, gearing up for what's coming. He knows he'll be in for a worse punishment if he doesn't do as he's told. Kurt could hook him up to the wall after this - his cock caged, blindfolded, ball-gagged, balancing on his tip-toes as he hangs there for hours, maybe even overnight. With the fear of a night hanging from the wall by his ass lodged in his skull (not only because it would be uncomfortable, but mostly because it would keep him from sleeping next to Kurt), Sebastian starts sucking Kurt off, the way he knows Kurt wants, each long suck capped off by a desperate whine and a bodily shudder, produced by the sliding hook and its unyielding steel ball.

Kurt arches his back, his head rolling left and right on his shoulders, surrendering to the decadence of it all – this handsome boy, in essence, tormenting himself, with his mouth on Kurt's cock, perfect and hot and soaking wet. Kurt gives in to his sadistic side and laughs at Sebastian's pitiful whimpers, his own coherent thoughts extinguishing one by one with the evacuation of blood from his brain.

"Oh, preppy," Kurt moans, tightening his grip in Sebastian's hair till he feels the release of a few strands. "God, that feels good. You're so good at that. You get good at that at school? You like getting on your knees for other boys, or is this just for me, huh?"

Kurt yanks Sebastian off his cock and shakes his head, expecting an answer. Sebastian sucks in air through his mouth and his nose, having held it while he worked over Kurt's cock, trying to numb his orgasm, dull needles shooting through his erection with every second of denial.

"It's…it's just…for you…Master," Sebastian coughs out. "No one else…but you…"

"Good," Kurt purrs, shoving his cock indelicately back into Sebastian's mouth. "Very good, preppy."

Kurt feels Sebastian groan around his shaft, frustration rippling through his muscles until everything inside aches. Sebastian's close to cumming. The signs are all there – his rolling wrists and ankles, the snuffling breaths out his nose, the low grumble as he tries his hardest to stave of his orgasm in favor of making Kurt cum, and then hoping he gets permission, fighting nature and biology and physiology and all of those other things that are impossible to defy.

"Faster, preppy," Kurt commands, his knees shaking. "I want to see that head of yours move."

There's a quick outtake of breath against his pelvis, and a whimper as Sebastian rushes to comply, then a cry, his body shaking, the ropes pulling from every direction, dragged taut by his wrists, his elbows, his ankles.

"That's it, preppy," Kurt says, his voice dissolving into breath. "Keep it up. Keep going. I'm almost there. And once I'm done, we'll see about you, huh? Would you like to cum, preppy? Would you like that?"

Sebastian's grunt of acknowledgement sounds more like a sob, and it pleases Kurt. Pleases him to the point that he forgets he was going to ruin this orgasm for Sebastian – stop him after he came and clamp hard on his balls, leaving him to writhe and wither in a cum-soaked wet spot on his satin sheets. But Kurt can't bring himself to do it. Not after this sublime feeling washes through him, with his beautiful boy's throat swallowing around him, the flat of his tongue lapping at him in long strokes, giving Kurt everything he wants even though nothing for Sebastian is guaranteed.

Kurt will let Sebastian have this orgasm, this one that neither of them can stop…but he'll make him suffer for it later.

"Tsk-tsk, preppy," Kurt mutters, working himself through to the end with a few thrusts of his hips as he starts to go soft, "you messed my sheets again. I'm going to have you sucking those things clean if you keep that up."

"Yes…Master," Sebastian pants. He shifts slightly on the mattress, seeking out a comfortable position without looking like that's what he's doing. Kurt wonders if, behind his blindfold, Sebastian thinks he's succeeding. But Kurt will let that slide…for now. He looks at his sub, admires the way his limbs look bound in this position, the tense muscles trying their best to relax when there's nowhere within their confines for them to go, and that uncompromising hook, settling back into place to torture him some more.

Just like this, Sebastian's breathtaking - absolutely statuesque.

"I think I'll just leave you here for now, preppy," Kurt says, giving Sebastian's crimson streaked cheek a slap, "while I go have a cigarette and grab myself a beer. And then, maybe, I'll come back for round two. What do you think?"

"If that…makes you happy…Master," Sebastian says in a serene voice, "then…I'm happy."

"Good," Kurt purrs, but with a catch in his normally conceited tone. "Very good." Kurt walks away from the bed, toward the door to the room, his footsteps purposefully heavy so that Sebastian hears him go.

But Kurt doesn't leave. He stands in the doorway, watching his sub lie on the bed, trussed up like a Thanksgiving turkey. He waits for any sign of disobedience – a shift of uncomfortable limbs, an attempt to stretch, or to tease himself with the ball thrust up his ass. But Sebastian doesn't move. He lies still - so incredibly devoted, so patient, so handsome. This young, hot piece of ass, so willing to lie and wait for his Dom to return, and Kurt trained him to be that way. In all aspects, Kurt should be tremendously proud of himself. Kurt took this cocky, smug, smart-aleck boy and turned him into a model sub.

And Kurt has to wonder - what has he done?