Bucky didn't want her to go.

In the Tower was one thing, JARVIS was always monitoring and there was always someone around even if they weren't in the same room. But out in the city, alone with the assassin, there was no one to protect Darcy.

Oh he knew he was being hypocritical, but he couldn't help it. He saw too much of himself in Steve's sub. Which was of course why Darcy was drawn to her, wanted to befriend her. His beautiful girl always saw the best in everybody, deftly sidestepping the darker parts of them to connect to what she insisted was the goodness at their core. She insisted that glimmer of good was the truth of a person and the rest didn't matter to her.

Hell, the girl still insisted that he himself was a good man. No one else would call the Winter Soldier a good man, not even Steve. He would say Bucky was a good man, but he would be thinking of the man he once was, not the man he was now.

Only Darcy could look at him as he is now and insist that he was good.

He can't get the image of the first time he saw Nikita out of his mind. Sitting there surrounded by bodies. It reminded him of his own rampage against HYDRA before he had been ready to come in.

He had been quiet when he first came to the Tower, and the others had been wary of him, even Steve. But not Darcy. No, she had snarked at him, teased and laughed. Eventually she and Steve managed to draw him out bit by bit.

He remembered the moment they bonded. He hadn't been sleeping well and found himself in the sitting area of the Common Floor, alone in the dark. Darcy had wandered in after a late night of hanging out with Jane in the lab.

She turned on the light in the kitchen and spotted him sitting there. "Can't sleep?" she asked.

Bucky just looked at her, wondering that she wasn't afraid of being alone with him in the dark. She should be. Darcy puttered around in the kitchen, babbling all the while about how sometimes it's hard for her to unwind and sleep after binging on caffeine and pulling all nighters with Jane in the lab. She crossed over to where he was sitting, carrying two mugs of cocoa and handing him one. "Cocoa helps," she said, "drink up."

They sat together in the dark. Bucky found himself silently drinking his cocoa watching her beautifully expressive face, captivated as she chattered on and on about what she and Jane had been doing in the lab. Surprisingly, her chatter seemed to soothe something inside of him. When she had finished her cocoa, Darcy got up and headed back into the kitchen. Bucky found himself following her into the kitchen.

She hadn't heard him enter the kitchen behind her, When she turned around after putting her mug in the sink she came up against the solid wall of his chest.

He was wearing just sleep pants with no shirt. She had found it difficult to keep her eyes off of him, hence the babbling. Her hands immediately came up to his chest, splayed out to touch as much skin as possible.

They both stared at each other as they felt the bond lock into place. Bucky reached his flesh and bone hand up to gently cup her face, tilting it up to meet his in a kiss full of longing. The kiss started slow and sweet but soon turned intense and heated.

Darcy broke away, gasping for breath, her hands braced against his chest as if to hold him back. "Whoa there big guy," she said breathlessly. "It's not that I'm not totally on board, because I am SO on board. But we both really need some sleep because I don't think either of us is firing on all cylinders at the moment."

Bucky searched her upturned face, still finding no traces of fear. He nodded and took a step back, turning to leave. Darcy reached out and grabbed his hand, "I said we needed to sleep, I didn't say it had to be alone."

Darcy led Bucky to her room, pulling him down into the bed with her. He wrapped her carefully in his arms and slept peacefully for the first time since before the war.

"Please," Darcy asked, "I promise I'll stay safe and take my taser." She knelt naked before him in their bedroom with her hands clasped behind her back, her big brown eyes full of promise.

And how could Bucky say no when she pleaded so beautifully? He reached down carding his right hand gently through her hair before grabbing a fistful. He crouched down in front of her pulling her head back by her hair, exposing her throat.

Darcy gasped at the pleasure/pain that jolted down her spine as he deliberately placed his metal hand around her neck, gently squeezing. As always he was awed by the total love and trust in her eyes as she gazed up at him. He removed the hand from her neck and stood, slowly pulling her to her feet by the hand in her hair.

He leaned in, pressing his lips to the alabaster column of her neck and sucking a dark mark into her flesh. He pushed her back onto their bed, covering her body with his own. He placed her hands on the metal railing of the head board, "Don't let go," he commanded.

Darcy gripped the railing tight as his hand trailed down the side of her face to run along her jaw. He lowered his mouth down to hers, using the hand gripping her chin to open her mouth, sweeping his tongue inside. He dominated her mouth with his tongue.

Bracing himself with his metal arm, he moved his other hand from her jaw down to caress her breast. Breaking the kiss he lowered his mouth to her breast capturing the nipple between his teeth, biting down then laving it with his tongue, eliciting a throaty moan from her.

He wedged a knee between her thighs, widening them enough for him to trail his hand down to her core. He parted her folds with his fingers, feeling her wet and ready for him. Bucky rose up, pulling his sleep pants down and off. He held her down by his metal hand on her hip while his other returned to torment the pearl at her core, working his fingers into her tight, moist heat.

Darcy moaned as the pleasure built, trying to roll her hips but held still by his iron grip, pressing finger shaped bruises into her skin. Desperate cries filled the room as her back arched taught as a bowstring. Panting for breath, Darcy's head thrashed from side to side as she desperately fought not to come without permission. Soon she was floating as she gave herself over to his control completely.

Finally Bucky wedged his hips between her thighs. Placing both hands on her hips he tilted them up as he entered her in one smooth thrust. He set up a brutal pace, both of their pleasure building exponentially with each thrust. "Come for me beautiful," he growled into her ear as he bit down on her shoulder.

Darcy came with a loud cry, stars sparking behind her closed eyes. Bucky fucked her through her climax before taking his own release with a final thrust, grinding into her body until they were both spent.

Bucky lowered her hands from the headboard, gently rubbing them to alleviate any muscle strain. He gave her a lingering heart felt kiss before heading to the bathroom. He returned with a damp cloth, gently cleaning her off before cleaning himself as well. He grabbed a bottle of gatorade from the mini fridge, placing on the bedside table. Climbing back into the bed, Bucky sat up against the headboard, gently pulling Darcy up to lean against him. He reached for the bottle of gatorade holding it to her lips, urging her to drink as he petted her hair gently, whispering words of praise and love. Once Darcy had finished most of the bottle he stayed propped up with her in his arms, gently stroking his hands over her skin with soft comforting touches as she slowly came back to herself.

Finally she looked up at him with a clear eyed gaze and a smile saying, "I love you."

"Love you too Doll," Bucky responded with a tender kiss to her temple.

"So," Darcy began with a mischievous grin, "can I go?"

Bucky sighed. He was still concerned, but he knew there was no way he could deny her anything. "Yes," he relented, "but only if you take Hawkeye."

She leaned up to plant a soft kiss to his jaw, "Thank You." He only grunted in response and rolled his eyes in a show of mock exasperation.

Bucky lay awake for a while after Darcy had drifted off to sleep, listening to the steady beat of her heart. Before he drifted off himself it occurred to him that anyone who thought Doms had the power in a relationship was clearly an idiot.