A romance between the Winter Soldier and a wild OC with mutan healing abilities.
Cause think about it the X-men and Avengers are from the same cinematic universe.

Anyway,

Hi I'm Mercy and I'm like Deadpool, but way better looking. I live with my crazy best friend Ricky, she's a genius, and we're thieves.
I know, I know, it's bad, but it's just so easy, especially since my older brother's a Hitman, with all the fun gadgets. Besides I was already on the wrong side of the law be association.

My whole perfect life changed when I took in a stray, and by stray, I mean man, and by man, I mean the Winter Soldier.

Third Person
Mercy, a young brunette woman, stood from her perch on the couch and made her way to the kitchen. She gazed around it tapping her fingers on the marble counter top. She broke her leisurely gaze as she heard someone silently slide open the window behind her. She grabbed her gun and spun quickly.

Mercy pointed her gun at the intruder, standing in the dimly lit apartment as he pointed the barrel of his, directly at her.

"Well it appears we're at a stand still." She said with a slight smile as she held eye contact.
The Winter Soldier had only just, two days ago pulled Captain America from the river, and escaped Hydra.

"So whatcha doing here?" The brunette woman said casually as she semi gestured with her gun at the man before her.

"I'm hungry." Was the soilders gruff reply. The woman raised an eyebrow and stiffled a laugh, with a Cheshire smile.

"Well, well." She said as she put her gun in the waistband of her black jeans. In fact, everything she was wearing was black. The Winter Soldier blinked at her confused before he too slowly lowered his gun, but kept it in his hand as a precaution. She didn't seem bothered. The slender woman made her way around the bench and to the fridge, opening it and glancing round it before grabbing two beers.

"Heads up." Mercy said as she chucked the glass beer bottle at the soilder. He caught it effortlessly in his human hand while she used the bench to open the beer before taking a hefty swig.

"Thanks." He muttered confused as he took off the metal cap with his metal hand.

"Me casa is su casa." She said with a smirk as she gestured at the dim apartment with the glass bottle.

They drank in silence for a few moments before she spoke again.

"Got a name, trespasser?" She asked as she lesurly leaned on the bench.
The soilder squinted at her as if he were trying to read her. He cautiously and slowly opened his mouth.

"The-" He was cut off by the sound of keys in the door. He looked to the door, then to the woman in fear and regret his gun now raised and pointed at her chest.

"This ain't my place either." She said with a sheepish grin as she held up a bag and jingled it. It was obviously filled with stolen items.

The soldier quickly turned and ran to the window and climbed out, the woman silently followed, beer still in hand. They made their way down the fire escape as the owner entered their apartment. The woman laughed heavily as they made it to the ground. The soilder looked at her in disbielf as she gained her composure.

"Alright, alright." She said as she calmed. "I'll take you back to my place." She said as she wiped the corners of her eyes.

"Man that was close." She said with a smile as she took a chugg from her beer as she started to leisurely walk down the dimly lit street.
The soilder stared after her in disbielf and wonder, before he slowly followed after her.