3 years later.

It took Clint 7 months before he was able to resume his duties at Shield.
The rage he felt over Natasha's death, the sadness that swelled within him impaired his ability to function.
He'd wake screaming, her blood covering his hands, her eyes questioning. She would open her mouth to speak but blood spilled down her lips and she choked before the words could form on her tongue.
Steve would often find Clint in the training room, beating a bag until his knuckles bled. After the anger passed Clint would slump to the ground, silent tears of rage and sorrow falling down his face.

"Alright, come at me" Clint bent his knees, his hands up and his eyes trained on the young agent in front of him. The agent flung himself towards Clint, all flurry and no finesse. Clint sidestepped, gripped the agents arm and pulled it up behind his back, he kicked at the back of the kids knees and let him fall against the mats.
"You need to pay closer attention to your opponent's movements." He gripped the soldiers hand and helped him up off the floor.
"Yes, Sir" the agent fell back in line with the rest of the recruits.

It was Steve's idea to put Clint in charge of training the new recruits, it helped him release the pent up energy and gave him something to focus on.

"Alright, who wants to go next?" The recruits looked at each other, some sporting black eyes and bruised cheeks. A skinny girl with long black hair stepped forward "I'll go" Clint nodded at her, she watched him keenly and countered his stance with her own.
He grinned at her for a moment before attacking, she blocked his first two punches but failed to stop his kick, her ribs protested under the pressure but instead of folding and stepping away she punched up and into Clint's stomach.
He stepped back and she immediately dropped to the floor swinging her leg and knocking him onto his back. Fast as lightning she put her hand around his throat, her other hand clenched into a fist next to her head.
Clint smiled and put his hands up, "you got me"
She grinned at him and relaxed her hand slightly.

The door to the training room opened, it's rusty hinges squealed. The recruits stared at the door, some looked confused, some shocked. The girl hovering over Clint glared, her hand lowering and she stood. Clint looked at the recruits with bemusement
"What's the problem?" He turned his head to look at what the recruits we're focused on.
"Who is that?" One recruit asked under his breath.
Clint's face hardened, his mouth clenched into a hard line, he swallowed.
"that's Black Widow" someone responded. The recruit shook his head
"No way, she's been dead for 3 years"
The older recruit slapped his hand on the others shoulder and let out a breathy laugh "welcome to Shield kid"

Clint picked himself up off the floor without taking his eyes from Natasha, the side of her mouth twitched into a small smile but it didn't stay long. She looked sheepish, cautious.
Clint turned his head slightly, still keeping eyes on Nat, he couldn't let himself look away, afraid that if he did she would be gone.
"Everybody get out" he ordered, the recruits collected their bags and hastily left the room. The girl who had Clint on the ground walked past Natasha, glaring at her as she passed.

Clint took a hesitant step forward
"Nat?" she smiled softly, finding it hard to keep his gaze. He reached her and before she could say anything his hand went to her face, the other gripped her waist pulling her into him. His lips crashed against hers in a needful kiss.
Her hands went to his hair, she pushed herself closer into him. Clint gripped her hip hard, pulling her against his crotch. He moaned pulling out of the kiss for air, his forehead pressed tightly against hers.
"I'm going to fucking kill Fury" he spoke between breaths
"I'm sorry Clint…" he shook his head "not now" he kissed her hard, his hands trailed down her hips to her thighs, he lifted her effortlessly and she wrapped her legs around his waist. He walked her to the closest wall and pressed her back against it, his hips holding her firmly in place.

Natasha's hands roamed his back, clawing, grasping at his skin, feeling every divot of his muscles, every scarred line. Clint groaned into her mouth, he pulled away and grabbed the hem of his shirt, pulling it over his head, she did the same with hers, revealing a lacy black bra.
Clint watched her chest rise and fall, his own breathing matching hers, he licked his lips before attacking her neck, his right hand went to her face, his left cupped her breast, massaging the tissue beneath the fabric.
Natasha moaned and clawed at his back, pulling him into her. He gripped her thighs and lifted her away from the wall, her arms wrapped across his shoulders, her hands in his hair.
He lifted his head and kissed her roughly, moaning into the contact.
He placed her on top of a stack of training mats, as soon as her ass hit the pads he kissed down her throat, between her breasts and down her stomach. Licking, biting, savouring every touch. When he reached the top of her jeans his hands swiftly undid the button and zip, she lifted her hips off the mats, holding herself up with her arms.
Clint ran his hands up her thighs and pulled her jeans off, taking her underwear with them. He kissed her inner thighs, trailing his tongue across the sensitive skin.
Natasha's breath hitched in her throat and her hips twitched, urging Clint higher. He obliged and took her clit into his mouth, he sucked gently eliciting a cry from Natasha, she threw her head back, her hand winding into his hair.

Natasha moaned and bucked her hips, she grabbed a fistful of his hair and pulled, he lifted his head and looked at her, his steel grey eyes burning. She guided him back to her mouth, their teeth knocked together in a lustful kiss. Clint grabbed his belt and pulled it loose, he undid his pants and let them fall around his ankles.
He grabbed Natasha's hips and pulled her closer to the edge of the mats. His cock pressing against her mound. They both moaned as he rubbed himself against her clit, Natasha clawed at his ass and pulled out of the kiss
"Clint" she breathed, his name had never sounded so good. He couldn't wait any more, he thrust into her, groaning as she tightened around him. Clint gripped her hips and thrust hard, he bent over her, kissing along the tops of her breasts.
Natasha rocked her hips, meeting him mid thrust, Clint pressed his forehead into the hollow of her throat, his breath making her skin warm and cold with every exhaled moan.

He was muttering now, he kissed up her neck, biting at her earlobe
"Fuck, Nat… don't stop…" she put her hands on the sides of his face, they took in the sight of each other before she drew him into her. The kiss was softer, loving.
Natasha's stomach muscles tightened as she felt the heat grow in her gut, Clint felt her tense and pistoned his hips faster. Her walls clenched around him and she moaned throwing her head back and grasping at his arms.
Clint's forehead was on her chest again, his breathing heavy as she came around him. His thrusts became sloppy as he felt his own orgasm building, he closed his eyes tightly, his mouth going slack. Muttering profanities before the orgasm made the words stick in his throat.

Clint pulled out of her with a shudder, he pulled his pants over his hips but didn't bother doing them up.
He grabbed Natasha's pants of the floor and handed them to her, she slipped them on and Clint stepped back between her legs, kissing her deeply.
When Clint pulled away and walked to his gym bag Natasha hopped off the mats and sat on the floor, her back resting against the pile and her knees drawn up, her arms draped over them.

Clint walked back over to her and handed her a bottle of water before sitting next to her, his legs crossed.
He looked at her sideways, waiting for her to talk.
"I was compromised Clint… Alexi sent his men and they blew all my covers." she looked into his eyes, he sat silently
"Before the battle in New York, Fury and I made a plan. Alexi needed to think I was dead, it was the only course of action we could take." Her eyes were pained, Clint put his hand on her knee and squeezed gently, urging her to continue.
"He was coming after me, he was going to kill anyone who got in his way"
"You should have told me" he said quietly
"No" she shook her head, her eyes pleading "if he got to you…" she shuddered at the thought
"you weren't safe… he had to believe I was really dead, he watched you for months after Clint." Clint clenched his jaw
"It took longer than I thought to get to him, I wasn't meant to be gone for so long…" she trailed off and looked at her hands.

"Is it over?" He asked softly, she nodded
"I cornered him outside of Belarus." Clint understood and didn't ask for details, all he needed to know was that Alexi was dead.
Tears pooled in Natasha's eyes, Clint grabbed her and she sat across his hips, their foreheads pressed together
"I'm sorry Clint…"
"Shh" he whispered, tucking a strand of hair behind her ear, his thumb stroking her cheekbone. They looked into each other's eyes before he kissed her deeply.

~I know that when I stare into your eyes
I can see all the years of lies
Ghosts and demons you never exorcised~