A/N: Well this series demands some boundary pushing and I think this is probably one of those chapters…but hopefully in a good way! Plus smut ;)

I'm anxious about this chapter, but you guys have stuck with me this far so thanks for that!

Prompt: BDSM

Deb attempts to slow her breathing, even out her heart which is thumping loudly against her chest. She can sense him in the room, but from the darkness of her makeshift blindfold it is impossible to tell where he stands. The whole scenario makes her uncomfortable and she tugs against her restraints, feeling the rope chafe against her wrists then her ankles. Yet that discomfort is surprisingly arousing, she can feel the wetness pooling between her thighs, her nipples hardening.

Dexter stands in the corner and watches this. The dim glow in the room illuminates her nude form. There is enough light for him to watch the tense way she breathes, how her body squirms against its restraints. He's already hard, just staring at her, enjoying her unease. He always finds comfort in the control he wields in any situation, and this is certainly no different.

Deb moans suddenly, the quiet tension in the room more than she can quite cope with. Dexter takes a half step closer "Shhh…" and watches as her body tenses again. Her hips lift slightly further and he knows that she enjoys this, even if she finds it unnerving. Her head turns in the direction of his voice but she remains silent, her uncertainty muting her.

Oh so quietly Dexter moves to the other side of the bed, his naturally discreet footfall being put to good use. Deb gasps when she feels the bed shift around her as Dexter places his hands on the bed on either side of her waist and leans forward. "Relax Deb." He whispers and he can hear a low moan in the back of her throat as he brushes the scruff of his chin over her clavicle. Dexter allows his eyes to slowly rove down her body and back up, taking pleasure in having her at his mercy.

Deb waits in silence, unable to understand why she enjoys this so much. Why it feels so fucking good to relinquish everything to him, to put her trust securely in his hands. If she allowed herself to ponder it she might think it has something to do with no longer trusting him at all. She might consider that all the trust she had in him before she knew, all the trust that had vanished that night in the church, was something she missed. And to play this role here, to have no choice but to trust him completely was oddly cathartic. In some way it made her feel loved again, made her feel secure.

Dexter sits down next to her, careful not to touch. His gaze wonders across the restraints at her ankles, tied to opposite ends of the bed, then up to where her wrists are bound together, the rope pulled taught and attached to the headboard. Satisfied that she will go nowhere he considers her again, thinks of all the things he can do with her at his mercy.

He starts at her belly button, blows gently across her skin and Deb responds with a sharp intake of air. He is about to touch her in that spot when his eyes catch the glistening moisture on her inner thigh. He groans to himself and pulls his eyes towards her face. "You want me." He tells her as he skims his fingers across her stomach lightly.

"Fuck….Yes." Deb shakily responds, desperate that the teasing stops so that they can get on with it.

"How do you want me?" Dexter asks huskily as he moves back up her body. He's close enough now that she can feel the heat from his body, but he doesn't touch her. Without warning he takes a nipple in his mouth and Deb grunts loudly as he teases it with his tongue.

He releases her nipple and continues up, placing a kiss in the crook of her neck before pausing next to her ear. "What should I do to you?"

There's an odd mix of threat and sex in his tone and it only elevates her excitement, causing her to strain towards him, wanting nothing more than his hands and lips on her body. She can feel her body tingling at his proximity, feel it's longing for his touch. She can hear him chuckle lowly in his throat at her physical response. "Say it."

"Fuck me." Deb moans and she can practically hear the smirk on his face.

"Not yet." He tells her smoothly as one hand slides over her breast, down her abdomen and between her legs. Deb groans again as his fingers skim over her, not quite making contact with the parts she most desires he touches. She's slick beneath his wandering hand and he pulls his hand back to examine the wetness left on his fingertips. He takes them to her lips, runs the moisture along her bottom lip and slips one finger in her mouth. She sucks at it greedily, needing some way to vent her frustration, hoping she can tempt him into giving her what she really wants.

He can barely stop himself from coming right there and pulls his fingers away from her lips so that he can finally kiss her. His tongue skims against her bottom lip to taste her before he slides it into her mouth. He takes his time kissing her, even as he feels her hips rotating against the bed, her body pulling forward to meet his as best it can against its bindings.

He pulls away from her finally, getting up from the bed and staring down at her again. Frustrated, Deb spits out "Fuck you."

Dexter chuckles again and he can see Deb's irritation increasing as she struggles once more against the ropes. "You'll pay for that." He promises as he slides around to the end of the bed and perches at the foot.

He leans down and kisses up the inside of her right thigh, pulling away before he reaches her hot center and doing the same to her left thigh. This time when he reaches her center he purses his lips and blows a stream of air against her. He can hear Deb give a choked groan in reply.

Dexter wraps his fingers around her hips then leans forward and places a kiss on top of her clit. Deb cries out, an unintelligible noise, as her chest rises and falls. Dexter leans forward again, this time running his tongue up the length of her and Deb responds with the same fervor, her head shaking as she cries out once more.

Dexter pulls back slightly and again blows a cooling gust of air against her heated center. Deb can take no more of his teasing. "Dex!" She calls him wildly.

"Mmm?" Dexter hums as he leans forward and kisses her center again. This time Deb nearly sobs.

"I-I…" Deb growls. "Fuck me!" She demands.

"Uh-uh." Dexter scolds quietly from between her legs. He runs his tongue in a circular motion around her clit and he can hear Deb whimper. "That's not how this works. You're the one tied down, remember?"

"Arghhhhh" Deb half screams, feeling close to tears and nearly hysterical.

Unphased, Dexter skims his index finger over her clit and stops enticingly close to her entrance. "That doesn't sound like you're asking very nicely." He mocks her.

"Dex…" Deb hesitates, unable to bring herself to give in to him, to fully submit. Deb enjoys her control too, and giving up whatever last bit she still holds onto, even strapped nude to this bed, feels impossible.

"Debra." Dex replies cooly.

Deb takes a shaky breath in as Dexter kisses her inner thigh again, rubs his cheek against the sensitive skin. She can't remember ever being this wet and ready before, this desperate for her orgasm which seems just slightly out of reach.

His fingers circle around her outer lips and she hiccups. A tear slides from the corner of her eye and catches in her blindfold. Another follows quickly behind and she realizes she can't hold out any longer, that she is entirely at his mercy.

"Please." Deb whispers, the sound barely escaping her lips. She can feel Dexter pause his movements. In this stillness she can feel the tautness of her body, as if she has been strung too tightly and might just suddenly snap apart.

"What was that?" Dexter asks.

Deb emits a choked sob and raises her voice. "Pl-please…I can't-Fuck! I need to come!"

"That'll do." Dexter grins wickedly and brings himself forward.

He swirls his tongue around her sex then slides inside her, taking in her tangy sweetness. He enjoys the sounds she makes as he does this, the way she groans and says his name. He takes her clit in his mouth and sucks while he slips two fingers into her wetness, curling them around and finding that perfect spot.

It's more than enough for Deb, who has been teetering on the brink already. She screams as she hits her climax, coming hard and fast, her body tensing beneath Dexter's probing mouth and hands.

Dexter continues his ministrations as she comes and she orgasms a second time, even harder so that she blindly pulls at the confining rope without a thought to the way it rubs harshly against her skin. There are a thousand flashes behind her eyes and Deb can feel nothing but the sweet sensation quaking through her body.

He pulls away as her second orgasm is still pulsating and makes quick work of unbinding one ankle and then the other. Still lost in sensation, Deb doesn't register her freed legs. Blissfully adrift in her body's pleasure, she feels Dexter push the material away from her eyes and off her head.

"Deb" Dexter calls her, his voice soft and husky. He's rock hard now, throbbing with need for her. Her eyes are still closed and he runs his hand across her still wet center, enflaming her arousal once more.

"Open your eyes, Deb." He instructs her and she obeys, her eyes blinking open to look up at him. He grabs onto her hips and pulls her down the bed so that her arms stretch out above her then wraps her legs around his hips. He pushes slowly into her and groans lustfully. He stills and leans down, one hand sliding beneath her head and capturing her lips in a searing kiss.

He pulls back and begins to move, slowly at first, setting a pace as Deb stares up at him and moans. He slides his hands from her hips, up her rib cage until they cover her breasts. He strokes her as he continues to move, his fingers swirling around her nipples, causing her to moan louder "More!"

He can feel her tightening around him and picks up his pace. He leans towards her, changing the angle and thrusting harder until Deb is shouting out "Yes…yes".

He manages to hold out until she goes falling over the edge and follows close behind with her name tumbling from his lips.

Dexter collapses over her spent body. With a last bit of energy he reaches up and releases her wrists. She's limp underneath him and he rolls onto his back, pulling her body over his and bringing her hands down to his chest. He picks up one wrist to examine the red skin, then peppers it with kisses before running his thumb across he irritation soothingly.

He repeats the procedure with her other wrist and then glances down at her, takes note of her closed eyes and even breathing. He smiles softly to himself, presses a kiss to the top of her head and snuggles her close before drifting off to sleep.