Lex throws her forearm up, blocking a spiked boot. It slashes deep into her arm, but she does not flinch. Her face is stone cold, focused.

She twists, lobbing the top of her foot into the vampire's head.

The vamp falls sideways, and lands hard.

He flings himself back up in one lithe move, and hisses, lunging at Lex.

She dodges, and swings backward with her machete. The vampire stands stupefied for a split second, then his head falls off, rolling away.

Dean stops it with his foot, and looks down at it. His eyes trail up to where Lex stands, bloody but victorious.

The past three months have really been hard on them. One hunt after another has transformed Lex from a soft flower, into a killer.

Dean couldn't be prouder.

Sam pulls himself up off the ground, examining the chunk of missing flesh in his side.

"This is going to need stitches for sure." He sighs.

"No doubt." Dean agrees.

On the way back to the hotel, Sam lays in the back seat, and Lex sits in the floorboard, keeping a piece of shredded cloth pressed into his wound firmly.

They arrive, and Dean helps Sam over to the bed.

Lex studies the damage, and addresses Dean. "There is not enough skin left for stitches, and he is losing a lot of blood. We need to cauterize it."

Lex's obsession with reading has proven especially useful when it comes to the inevitable injuries involved with hunting. She has familiarized herself with the men of letters entire shelf of medical health books.

Dean pulls the iron off of the hotel room shelf, and plugs it in. "Sorry buddy." He says, patting Sam's shoulder.

When the iron heats up, Dean holds Sam's shoulders down, and Sam bites on a piece of rolled up leather, while Lex presses on the gaping hole with the iron. It steams and smokes, and Sam suppresses a scream.

Dean winces, but Lex remains steady.

When she removes the iron, the wound has stopped bleeding.

Dean and Lex sigh in unison, and Sam closes his eyes.

"Get some sleep." Lex says softly, laying her hand on Sam's head. "We're going to go get cleaned up."

She takes Deans hand, and leads him into the bathroom.

As Dean peels off his bloody clothes, Lex pulls herself up onto the sink, and watches.

His muscles ripple, as he pulls his shirt off. She feels a strong tug in her stomach, and she willingly gives in to it, hopping off the sink, and approaching him.

She runs her hands from his hips, along his pant-line, and up his torso and chest. She wraps them around the back of his neck, pulling him into a kiss.

He steps forward, kissing her back powerfully. Her eyes close, and she shivers.

Something about seeing Dean act out his basest instincts: fighting, killing, protecting her; makes her want him so much.

She draws back, pulling her own shirt off. Dean reaches behind her, unsnapping her bra, and letting it fall to the tile. His hands explore her back, and he pulls her in close to him, their chests touching. She leans her head back, and his lips brush her neck.

He bites down gently, and she moans.

His fingers trail lightly to the bottom of her back, and then around the top of her blue jeans, to the button. He unbuttons her pants, and pulls them down. His hand slides from her belly button, downward.

She gasps, and feels her legs turn to jelly, as he fingers her. Her head rests on his chest, and she breathes heavily.

Suddenly she pulls away, and backs toward the shower, turning it on.

Dean grins wickedly, and begins to pull the rest of his clothes off.

She climbs in, and slides the glass doors closed. They fog up quickly, so that he can only see her slender silhouette, as she washes. He enjoys the show for a moment, before opening the door to join her.

He steps in behind her, and watches the white suds slide down her body. As she turns to face him, water splashes off her, throwing tiny droplets onto his chest, and into his hair.

His head tilts down, and his green eyes look up at her. Water drips off his eyelashes, and nose, and Lex watches in a trance.

His hands run through her wet hair, pulling her head back, and he kisses the side of her neck. She braces her hands against the wall, in an attempt to steady herself. He lifts her head up again, and lays her back against the shower wall. His lips run from the base of her neck, down to her chest.

His tongue traces her curves, and she bites her lower lip, looking down at him. He comes back up, and kisses her again.

Her hands brace against his chest, and she pushes him backward. She pulls all her hair over her left shoulder, and lets her lips graze their way down his body, as she drops to her knees.

Dean leans his head back against the wall, chest heaving. He runs his hands through her hair, as she moves her head steadily back and forth.

After a few minutes she makes her way back up his body, stopping to nibble on his collarbone, and finally up his neck. He reaches over, opening the shower door, and lifts Lex out.

He leads her to the sink, and lifts her up on the ledge. She braces her hands on the hot and cold handles of the sink, leaning back. Her head rests on the mirror, and she moans, as Dean enters her. He moves steadily, and she can feel tension building.

Her legs shake as it releases, and she nearly falls into the sink.

"Easy." He says, sliding his hand along the small of her back, and holding her steady.

As he finishes, Dean closes his eyes, and groans.

They remain in that position for a few minutes, reveling in the moment, and then Dean finishes his shower, as Lex gets dressed.

She braids her hair down her back, and walks back into the hotel room. She rests the back of her hand on Sam's sweaty forehead, checking for a temperature. It is cool for now, which is a good sign. "How are you feeling?" She asks.

"Okay, considering." He smiles weakly.

Lex pulls some painkillers out of the first aid kit, and passes them to him.

"I wish Cas would answer." She sighs. "Then none of this would be necessary."

"I'm getting really worried about him." Dean says, walking out of the bathroom. "He has never gone this long without answering us."

"I'm sure he's just really busy." Sam tries to console them.

"Let's get some sleep." Dean sighs, "We have a long drive ahead of us."

He and Lex crawl into bed, and he wraps his arms around her. He falls asleep quickly, but Lex lies on her back, staring at the ceiling.

She begins to get the sinking feeling in her stomach that she so often does, before being called to a judgement. As she waits for the voices to start, she worries. Castiel hasn't answered them for more than two weeks, how will she get back...

"Why are you doing this?" A females voice interrupts her thoughts.

"Because I can." A male answers her.

"Please, I have children!" She cries, "Don't hurt me!"

Lex climbs out of bed, getting dressed quickly. She slides her cell phone into her pocket, and straps her angel's blade sheath around her waist. She shakes Dean awake.

"Wake up, I have to go shank an angel." She whispers.

Dean sits up, and swings his legs over the side of the bed. "Cas can't come get you!" He panics.

"I have my cell, I'll call and let you know where I am." She says.

"Ok be safe." He worries. "If this is another trap..."

"I'll be fine." She promises, kissing him, and then vanishing.

She reappears two hundred miles away, in a vacated lobby of an office building.

A pale skinned girl is backed against the wall; her face is black and blue.

She looks behind Lex, terrified, and Lex turns to face the girl's oppressor.

A dark skinned angel backs toward the door. "I knew you would come. I am prepared to make this sacrifice, for my brothers. For my leader." He closes his eyes, and smiles.

"What sacrifice?" Lex speaks, stepping forward.

"Your men are being killed right now, by mere human militia that my commander hired. You cannot go back to them. Your pet angel will not help; we already have him imprisoned. Without the Winchesters, you can be defeated oh so easily. I was only the bait to lure you away." The angel laughs maniacally.

Lex feels her ears begin to ring, as she realizes what is happening. Castiel is captured. The boys are heaven knows how far way, and being attacked. Her arms begin to shake, and her legs feel weak.

She starts to panic, and suddenly, something in her snaps. She regains her strength and resolve, as an unexplainable instinct kicks in.

Alexandros strides forward, calmly, holding her hand out. The angel falls to his knees before her, and she wraps her fingers in his hair. She pulls his head back, and sinks her teeth into his throat, sucking with all her might.

Angels grace pours from the angels severed flesh, and Lex drinks it greedily. Her pupils dilate, and her eyes turn ice blue. Finally, she releases him, and his lifeless body drops.

She wipes an escaped droplet of the grace from the corner of her lip, and licks it from the tip of her finger.

She stretches her arms out, feeling the new power the angels grace has given her.

Her eyes close, and when they open again, she is standing back in the hotel room, where the boys are laying on the ground, bloody and beaten.

A group of several men stand over them, fully armored and equipped with weapons.

Lex is consumed with hatred for these men, who would kill two complete strangers, just for money.

She plunges into their midst, a single touch from her turns them into smoking corpses. Within seconds, all the men lie dead.

Lex rushes to where Sam and Dean lay side-by-side, lifeless and pale. She lays a hand on each if their cheeks, and closes her eyes. She feels a portion of the power draining out of her body, as she heals them both fully. They sit up, and Sam looks at her wildly, taking in her altered appearance. "What did you do?"

"I...I drank the rogue angels grace." She says, suddenly realizing how dark that sounds. "The angel told me that these bastards were coming to kill you, and it just... happened. It was this powerful instinct, I couldn't control it. I needed to get to you, and my body told me how."

"Lex that sounds dangerous." Dean says, reaching out to touch her face.

"I don't think it's permanent..." She says uncertainly. "I could feel it draining, when I healed you."

"Be careful with this." Sam warns.

"Oh my god!" Lex suddenly remembers, "They have Cas!"

"The angels?" Dean says, climbing to his feet.

"Yeah! I didn't know, because my brain isn't programmed to catch angel on angel violence I guess. But I think I can find him with this power." Lex holds up her finger, and closes her eyes.

She locks onto Cas, and takes the boys hands, disappearing and reappearing in an abandoned coal yard. She heads toward a metal shed, and blows the door open with a flick of her wrist.

Two angels jump back in shock, blades raised. Castiel is bloody and unconscious, tied up in the corner.

Sam and Dean rush to him, untying his wrists. The angels move toward them, trying to stop them.

Lex snaps her finger, and one angel disintegrates on the spot. She approaches he other, and clamps her hands on his shoulder and jaw, digging her teeth into the soft flesh below his jugular, and drawing out the angel's grace.

Sam and Dean look at each other, eyebrows raised.

Lex approaches Cas's limp body, and lays her hands on his cheeks.

The room lights up for a moment, and then Cas wakes up, looking around confused.

His eyes lock on the form of the lifeless angel in the floor. "How did this happen?" He asks urgently, jumping to his feet.

"How would I know?" Lex says. "Did they jump you?"

"No, not that! How did Jericho's grace just...vanish?" He points to the dead angel.

"I had to drink it to save you." She explains.

She tells him what happened with the first angel, and how it gives her powers.

"Alexandros this is wrong." Castiel says, visibly upset.

"It's not permanent. It'll wear off. I only did it because I had to save Sam and Dean. And you." She defends herself.

"I don't know Lex..." Sam says. "I mean I know why you did it, but you can't keep doing it. It's dark."

"I know, I won't do it anymore." She promises.

Cas takes them back to their hotel room to get the Impala, and they drive back toward the bunker.

Lex doesn't speak the whole way home. She can feel the angels grace power draining out of her, and it makes her cranky.

Dean and Sam avoid the topic of angels, and instead talk with Cas about how he was captured.

When Cas finishes his tale, he vanishes from the car, leaving Lex alone with the boys.

She fidgets nervously, refusing to look up, but she feels their eyes in the rearview, studying her.

Finally they reach the bunker, and go inside. The boys amble toward the kitchen to get dinner, but Lex wonders into the bedroom, and lies down.

The grace has almost completely worn off now, and she begins to feel nauseous.

She climbs back out of bed, and runs to the bathroom, throwing up in the toilet.

Dean walks in behind her, and rubs her back. "Gross." He says softly, causing her to chuckle darkly.

Lex stands up, and walks to the sink, turning on the faucet, and rinsing out her mouth. "I think I have an angels grace hangover." She sighs.

"Looks like." He agrees, brushing her hair out of her face.

She treads back into the bedroom, and lays back down, finally falling asleep.

...

A few days later, Lex lays on the couch, still sick. Dean sleeps on a chair next to her, their fingers intertwined.

She begins to feel the familiar tugging in her stomach again, and the voices follow soon after.

"I am your god, you will obey me." A voice says darkly.

A room full of terrified voices reply, "We will obey you."

"Shit." Lex groans, sitting up stiffly. "I gave to go again."

"Seriously?" Dean rolls his eyes. "Don't you ever take a break."

"I literally can't." She gripes, vanishing yet again.

Alexandros appears on stage in a loaded conference room. Next to her stands a puny looking pale angel, lecturing a group of terrified humans on his divinity and power.

"You are no god." She interrupts him. "You are an angel, and a shitty one at that."

She snaps her fingers, and he falls forward off the stage.

His head busts open and he bleeds on the floor. The humans in the room run, panicked.

Lex jumps off the stage, and stands over the angels wriggling form. She looks at him, and is overcome with crushing desire. She crouches, placing her hands on his chest and face, and holding him down, as she tears into his throat. After a moment, he stops struggling, and falls limp.

"Alexandros!"

Lex looks up to see Castiel standing at the far end of the now empty room, his angel blade drawn.

He looks at her with distaste, and anger.

She vanishes, reappearing in the bunker. Cas follows, flickering into solid form before Lex.

"WHAT do you want Cas?" She growls.

"Why did you do that?!" Castiel demands, stepping forward. "You knew I would come for you, you had no reason!"

Sam strides through the doorway, just behind Cas, and immediately notices Lex's ice blue eyes.

"Answer the question Lex." Sam demands, squaring his shoulders.

"I don't know why, I guess because I felt like it." She snaps. "I don't know what the big deal is, it's not like he was going to use it after I was done with him."

"Lex it's wrong!" Sam says, walking toward her. "You can't keep doing this! It obviously affects you! I know what you're going through; I've faced an addiction like this before. You have to fight it!"

"How do you know this is such a bad thing? It's not like I'm using the power for evil." She shouts.

"I just know!" Sam grabs her wrists, "You have to stop this!"

Her eyes flash, and Sam flies back into the wall, hitting his head. He slides to the floor, out cold.

"LEX!" Dean screams, rushing through the doorway, toward his brother. "What the hell?!"

Lex backs up, eyes wide, as she realizes what she's done.

Castiel walks toward her, blocking her from Sam and Dean.

"You need to go!" He demands.

Lex shakes her head in agreement, evaporating from sight.

Cas touches Sam's cheek, and Sam's eyes snap open.

"Where is she?!" He says angrily.

Dean stares through his brother, eyes wide with shock.

"She's gone."