Title: Overstepping Boundaries
Author: ceria
Characters: Gideon Prewett / Sirius Black
Rating: NC-17
Themes chosen: fight!sex and semi public!sex (Please your mods)
Word Count: about 3,000
Summary: Gideon and Sirius are sent on a mission together.
Authors' notes: Thank you very much, elfflame and stellastars for the beta, I know how busy we've all been lately.



Gideon hated missions with Order members he didn't know very well. What the hell had Dumbledore been thinking? Sending him to Germany with Sirius Black. He wanted Fabian beside him and hated the fact he couldn't travel with his brother because Fabian was too sick to leave home.

See if you can infiltrate one of their meetings, Gideon. I need you and Sirius to investigate for me. As purebloods, you both have a better chance than anyone recognizing who Voldemort might send recruiting to Durmstrang."

He hated these meetings. Chanting with the rest of the frenzied crowd, the ones who believed mudbloods littered their world just by existing. The need to pretend that he believed what Malfoy and the others said. It never failed that he left trembling and sick to his stomach, needing to vomit the moment he was safe in order to purge his body of their lies. His lies.

The first twenty minutes had gone well – or as well as expected. They stood amongst forty or fifty others, listening to the same rhetoric Gideon had heard once before.

Do you want our world contaminated by Muggles? Gideon had yelled "NO" with the throngs of people, the very word tearing his heart more than his throat.

Do you want to see us overrun and murdered? "NO."

Do you know what Muggles do to our kind? "YES."

Gideon wished he could spit the foul words onto the ground and grind them into the mud beneath his boots.

Then, forced to stand next to Sirius fucking Black, both of them robed head to foot in ridiculous, stifling robes, faces covered by black masks that smelled like sweat and fear, Gideon had to frantically reach and grab Black's arm, refusing to let him surge forward with the crowd who wanted to join the Death Eaters. If they stepped forward, they would have to remove their masks - and they would be recognized. The polyjuice wouldn't last that long. The Lestranges knew Gideon, they knew he was a blood traitor to their cause.

It hadn't been easy to find two men invited to the meeting. The masks were used as invitations, owled anonymously to wizards who Voldemort's cronies had heard would be interested. It had taken the Order months to track down two men and even longer to decipher the correct way to use the masks. Once a potential Death Eater was given a mask, they were allowed to attend two meetings. If you did not step forward during the second meeting, you would never receive a mask again. Probably never breathe again.

They had apprehended the two men in a hotel room just before they dressed. Both men had been wearing the robes already, holding the anonymous masks in their hands, wands nowhere in reach as they changed. Opening and closing his hands hidden inside his robes, Gideon wanted to complain about the discomfort of his bruised knuckles. That had been the first time he'd punched a man with the intention of knocking him out without relying on magic.

Black's impulsive reputation was well earned, Gideon thought, as he stepped forward half way through the meeting, his attention focused solely on one Death Eater standing in the front row, close to the far left end. Maybe he recognized the man. Gideon had recognized two so far himself. Sometimes the robes and masks didn't matter when you had seen someone for seven years. It was easy to recognize their stance, the way the twiddled their fingers – by using their thumb to tap each finger twice then move to the next fingertip. Just like Rodolphus Lestrange always did.

"You'll be caught!" Gideon hissed, hoping that Black could hear him over the din in the room. Praying that no one else could. It was bad enough to be partnered with someone he didn't trust, but Black had a reputation for impulsiveness that Gideon didn't care for.

"That's Regulus!"

Well. That was news Gideon hadn't known. But he was four years or so older than Regulus Black. In the throngs of people shifting back and forth, Gideon stepped directly behind Sirius, his chest pressed against the other man’s back. Then he cast a minor spell around them. "Your brother is lost to us!" Gideon whispered fiercely.

"He. Is. Not."

"Did you know he joined them?"

"No."

He wrapped one hand around Black's right arm, hoping the fool wouldn't draw his wand and charge after Regulus like some recalcitrant child. "Neither did I. Which means Dumbledore doesn't know. We need to go, Black."

"You're a cold-hearted bastard, Prewett."

"Yeah, well. We'll still be alive." Sirius tensed beneath his grip and Gideon pulled him harder against his body. He was angry and scared, a bad combination, but Sirius seemed desperate, which was worse. Black stepped back, grinding his heel on Gideon's toes. Snarling, Gideon shifted, his pelvis pressing against Sirius' arse. Fuck if his reaction to being angry wasn't half a hard on. Fuck if Sirius didn't feel it and pause, then shift again, rubbing against him. "Knock it off," Gideon whispered, sure that Sirius would use his embarrassment to make Gideon let go so he could chase Regulus.

He would kill Fabian for being sick when they returned. People surged around them; ten stepped forward, already whipping off their masks. Glancing around, Gideon could see the fervor in their facial expressions. They had to leave quickly. If they did not, the polyjuice would wear off and their bodies would begin to change back.

Yanking hard on Sirius' arm, Gideon pulled them back, fading them into the crowd of people that milled near the back. He was shocked no one realized they didn't agree on what direction to take. In a few minutes, the doors would open and they could leave. Each step backwards was a fight. Sirius seemed to want to move forward, to expose himself for any chance to talk to Regulus. For the chance to die, most likely.

Furious, Gideon wrapped one arm around Sirius' waist and dragged him backwards another step. He was angry, and damn if Black wasn't rubbing his arse against him every step of the way, using every possible means to get Gideon to let him go. They were in the middle of the crowd now, all of them were crowded together, trying to get out, to escape. Only then did Gideon realize he wasn't the only one dragging someone. To his right he glimpsed a slender, pale hand wrapped tightly around a dark hand. She was tugging on her partner – spouse? - the way Gideon tugged on Sirius' waist.

A few more steps, and she faltered, but Gideon surged back with Sirius still wrapped tightly in his arms, and escaped the hall. Finally, Gideon was able to breathe easier, even with Black still angry, they had much less chance of being caught now. A moment later, he could hear the pop of Apparating wizards all around him as the others quickly left the area. Even with him desperately pulling Sirius away, they had managed to be two of the last people in the hall. The Death Eaters were all inside, probably initiating the ten or so that had stepped forward or not made it out of the room. The fools.

"Don't you dare!" Sirius said as Gideon wrapped one more arm around him, intending on Apparating them away from there.

"Why not?" Gideon asked.

"Regulus has to eventually come out of there."

Doubtful, but Gideon hesitated as Sirius whispered, "What would you do if it had been Fabian?"

Sighing, he glanced around the little town that was nestled in the forest. "Ten minutes," Gideon said, giving up the idea of leaving immediately. He nodded his head toward the tree line to indicate that may be a safe place to wait. He expected to walk there, but Sirius turned around, wrapping his arms around Gideon and Dissapparated them to the spot Gideon indicated. Disorientated by the sudden Apparition Gideon let him go, stumbling briefly but catching himself against a tree while Sirius ran, dodging the trees, running back to the hall. Gideon caught his breath and ran after Black, ducking beneath snapping limbs, angry at himself. If Sirius got them caught…

Black stopped inside the tree line, their black robes blending with the night. He dropped the mask on the ground and stepped on it, driving in into the dirt. Tempted to do the same, Gideon glared at him instead and picked it up, reducing the masks and placing them in his pocket.

As soon as he was done, Sirius grabbed the front of his robes and shoved him against a tree trunk. "Don't you ever fucking do that again, Prewett."

"What? Keep you from exposing us?"

Gideon could feel tree bark digging into his shoulder blades, rending the borrowed robes. Sirius leaned against him, their mouths centimeters apart, his body pushing against him to emphasize each word. "Don't you ever try and come between me and my brother. No one does that."

"Voldemort obviously has," Gideon said, angry again; then Sirius had him by the wrists, his arms twisted awkwardly behind him, hips pressing hard against him. Apparently, Gideon wasn't the only one who got hard when angry.

"Then you should have walked away and let me go to him."

"No."

"Why not?"

"And go back without you? I think not."

"You are not my keeper, Prewett."

"Thank Merlin."

Sirius twisted his face into an ugly snarl and closed the distance between them, for a moment, Gideon thought Sirius meant to headbutt him as he had done to the man in the hotel room, but instead, he bit Gideon's neck. Gasping, Gideon accepted the pain easily enough and tried to push away from the tree, wanting to get free. They were in the fucking woods, hardly fifty steps away from the Death Eater recruitment meeting.

"Bad timing, Black," he said, trying to escape from his grip. Instead, he ended up pushing his hard cock into Sirius' pelvis. He could hear Sirius chuckling, his breath warm against Gideon's neck.

"Didn't you just say you wanted to distract me?" Sirius said, licking him.

Gideon threw his head back, refusing to say yes, to give in to him. Ridiculously, he realized this was the first time he'd been around Death Eaters and not needed to throw up afterwards.

"Not here. Not now."

"Fine then," Sirius said, pulling Gideon into his arms and Apparating them. Again. He hated that, being unprepared for feeling his insides stretch and snap, and even worse, wondering where Black was taking them.

Glancing around, it took Gideon a moment to recognize the rented room where they had physically overpowered the two men scheduled to attend the recruitment meeting. At least they were still unconscious, heaped into a corner behind the bed with nothing but their feet showing.

"What are you doing?"

"You said not there. So I gave us a new here."

He glanced at the bed, "Black, what if they wake up?"

He laughed again, and Gideon shuddered at the sound. "Then I guess you should keep your voice down while I fuck you, Prewett."

"Damn it, Black. We need to go home."

"And let me lose the chance to do something about this?" Sirius asked, pressing the palm of his hand against Gideon's cock.

Rolling his eyes, Gideon swallowed. "Yeah," he said.

He laughed again, leaning forward to bite Gideon's neck. "I think we better take care of you lest you splinch yourself."

"Knock it off, Sirius," Gideon said, trying to back away from him, even though Sirius still held his arms.

He shook his head, and pushed Gideon backwards. "No. Stop being a prude, Prewett. This is your fault, so I'm taking care of it right now." Without another word, Sirius pushed him against the wall, twisting his hands around, holding Gideon still. For the second time that night, Gideon had something digging sharply into his shoulder blades, the pain in his back quickly forgotten when Sirius bit him again, pushing his hard cock against him, grinding into Gideon.

Gideon had every intention to push Sirius away when he released his hands, but instead, he glanced at the feet in the corner on the floor – still not moving – and didn't stop him when Sirius reached for his robes, hiking them high around his waist.

Sirius smirked, running his hand across bare skin, laughing when Gideon's muscled thigh contracted from the touch. That was the problem with Black; he assumed everyone wanted him. Ignoring the traitorous part of his brain that replied yes, Gideon shifted his weight to the side and tried to get away.

"Don't think so," Sirius said, chuckling at him. That laugh was getting annoying.

"Fuck off, Black," Gideon snarled, finally finding the desire to push him away. "Not everyone wants you."

He raised an eyebrow at Gideon, obvious disbelief etched on his face as he reached down, wrapping his hand around Gideon's knee. Yanking it up, he wrapped Gideon's leg behind his waist and leaned against him, biting his neck again.

There wouldn’t be kisses between them, Gideon knew, not that he wanted to exchange any. He could feel the tip of Sirius' cock press against his balls after his leg was wrapped around Sirius' waist. Gideon grabbed his shoulders for balance, fingertips digging into the borrowed robes, sliding across rough material trying to find a hold on his skin.

Fingers dug frantically into Gideon and he arched against the touch, his head banging hard against the wall. They didn't have any lube – who could have planned for this? – and Gideon winced as dry, calloused pads sank inside him. One, then two, scissoring back and forth to stretch him.

He was groaning softly, letting Sirius know what felt good. Keeping his eyes closed, for he didn't want to look at Sirius and see that smug expression, Gideon rocked his hips forward, silently asking him to remove the fingers and replace them with what he wanted more at that moment.

Fingers were removed and Gideon whimpered at the sudden loss, then gasped painfully as Sirius pushed aside robes, scratching Gideon's belly in his hurry. He was still too dry, and he heard Sirius spit, but the saliva didn't help much and it hurt as Sirius shoved inside him, without finesse. His whole body would ache from this.

Gideon dug his fingernails in deeper, wiggling them between muscle and bone, trying to make Sirius feel the same pain he felt. Black held still for a moment, one eyebrow rose while he waited for Gideon to signal that he could continue. Wrapping his forearm around Gideon's leg, Sirius pulled it up higher, making Gideon lose his balance. He shoved inside deeper, then pulled out, the friction almost unbearable and Gideon moaned, making Sirius laugh one more time.

"Stop complaining, Prewett," he mumbled, his words soft against Gideon's neck, as if they could balance the discomfort he felt. Gideon didn't watch Sirius after that, didn't see his expression of fierce joy or determination as he rocked up and down, burying himself inside Gideon. No, all Gideon could see were four unmoving feet, staring at them as if they might suddenly move and he would be caught, shoved against a wall, robes around his waist, Sirius Black buried what felt like balls deep in his arse.

Sirius moved, changing his angle and Gideon groaned, feeling cock slide against his prostate. His fingers shaking, Gideon tried to grasp him harder, trying to find a better hold, but Sirius was moving too fast, too hard and Gideon gave up, letting his body move to the thrusts against him, rocking in Sirius' wake. His head bouncing off the wall, the unpolished wood splintering against his shoulders, Gideon tried to watch the unconscious men, but he couldn't tell if they were moving.

Sirius shoved in deeper, causing Gideon to groan louder and then, before he knew it, Sirius went still, gasping for breath as he came, leaving Gideon wanting, still hard.

He dropped his head to Gideon's chest; still laughing softly and Gideon leaned over, biting his shoulder in retaliation, chuckling himself as Sirius flinched, his whole body probably sensitive after orgasm.

Pulling back, Sirius flashed him a cocky grin then wrapped his free hand around Gideon's cock, tugging harshly on it. Closing his eyes again, Gideon whimpered, unable to control it, unsure if it was pain or pleasure that Sirius caused.

Pushing hard on Sirius' shoulders, Gideon forced him to down until he was on his knees. Considering how sore Gideon would become tomorrow from this, he pushed his hard cock against Sirius, asking – demanding – some recompense for it.

The fool laughed at Gideon again, then swallowed him, quickly taking more and more into his mouth until Gideon gasped, feeling the back of Sirius' throat contract around the tip of his cock.

Tan fingers curled through black hair, Gideon didn't dare move as Sirius slid forward then back. He pushed his hips back against the wall, letting Black do all the work, eyes open and staring at Sirius glanced up at him, his gray eyes shining. Gasping once, Gideon trembled and came, emotions on edge, too fragile from the meeting, the sex and the nervousness the two men might wake up, that they had been unconscious for far too long already.

Remaining on his knees, Sirius continued to watch him until Gideon couldn't keep his gaze and shut his own eyes, his body lax from orgasm.

With one final tug from his lips, Sirius let him go and stood up, smoothing Gideon's robes as they fell back about his legs.

"Ready to go, Prewett?" he asked casually, his voice calm as could be.

Surprised, Gideon looked up at him, noting Sirius' expressionless face and the sudden tilt of this head toward the bed.

It took Gideon a moment to understand he should look in that direction. When he did, he could see the feet moving and one hand flailing above the mattress. Gideon nodded, and Black wrapped his arms around him, making the first jump toward home and safety. Gideon swore to himself right before they left that he'd never take another mission with Sirius Black if it involved Death Eaters.