Hi gang! I'm back…with a new obsession. Lindsay and Severide from Chicago Fire/Chicago PD. I love this couple so I decided to write my version of their lovestory. This first chapter is basically just a rewrite of how they first met, with a few changes thrown in. My plan is to follow their story from the shows pretty similarly but throw my own twist on it. I hope you enjoy!

Chapter One – Blackout

"She's back."

Lt. Kelly Severide looked up from the furnace he was tinkering with and glanced at his friend with a raised eyebrow as he asked, "Who?"

"The hot detective from Intelligence trying to save your ass from Vince Keeler."

"Yeah?" Kelly replied nonchalantly as he turned his focus back to the furnace. The power had gone out in Firehouse 51 and screwed up the furnace's backup generator system. With a house full of neighborhood residents seeking shelter from the blackout at 51, including kids and the elderly, Kelly and Matt Casey were dispatched to get the system up and running quickly. Grimacing, he growled, "Hand me that wrench."

"What was her name again?" Casey asked with a smirk, always ready to bust his buddy's balls.

"Looks like the air filter is clogged," Severide answered tightly, reaching his muscular forearm into the depths of the generator. Just when it seemed he wouldn't rise to the bait, he finally added, "Lindsay. Detective Erin Lindsay."

Detective Erin Lindsay. How could he forget. The sexy brunette detective had come barreling into Severide's life only an hour ago and he couldn't seem to stop thinking about her, her take charge attitude, and that sultry voice…

"She is way too hot for you," Casey informed him, barging into his thoughts with a wink and a knowing grin.

"Like Dawson is for you?" Kelly shot back, his focus solely on cleaning out the air filter and replacing it. When he did, the generator charged to life and the lieutenant grinned triumphantly.

The two firefighters ran back up the stairs to the firehouse's main floor and almost collided with the way too hot Detective Lindsay, who was talking to Chief Boden in the hallway at the top of the stairs.

"Hey," Kelly said lamely as he reached out to steady her after knocking her off balance, "You're back."

Casey bit back a smirk as Erin nodded with a tight smile and repeated, "I'm back. I was just telling Chief Boden that I've been hearing chatter that Vince Keeler put a hit out on you and sent someone over here to rough you up. What exactly did you say to him to piss him off?"

Severide shrugged as he answered, "I didn't really say anything…"

"Lt. Severide is a man of few words," Casey added, the amusement completely vanished from his face.

"He had a knife," Kelly explained, when Erin narrowed her eyes at him, "I took it away from him."

"And then kicked his ass and threw him out into the snow," Chief Boden finished, looking from Kelly back to Erin as he added, "The lounge was full of families. We didn't need that kind of trouble."

Erin nodded in understanding and then said wryly, "So I'm assuming you didn't realize at the time that he was a guy who enjoys killing people with his bare hands."

"No, he skipped over that part during the introductions."

If Severide didn't know any better he would have sworn that the tough as nails detective bit back a grin at his comment. But she hid it well as she took out her phone and showed them a picture of Keeler's goon and asked, "Seen him around tonight?"

The three men took a long look at the photo before Boden ordered, "Let's find him."

Erin turned to head down the nearest hallway and was surprised when Severide fell into step beside her. Glancing over at him, she asked, "Where are you going?"

Giving her another one of his nonchalant shrugs, he answered simply, "Wherever you are." And then, before she could give him the lecture about how she could take care of herself, he added with a grin, "You know, if this were a horror movie, we'd be the first ones killed, splitting off like this."

"Yeah," she seemed to agree and then added, "except we're not a couple of top-heavy coeds out looking for fun. I'm a highly trained officer of the law with enough firepower to take out a horde of the undead."

Kelly swallowed his chuckle but couldn't help grinning at her as he answered, "Gorgeous and cocky. Yeah, you definitely die first."

"Are you seriously flirting with me while we're looking for a guy who was sent here to kill you?" Erin asked, her eyes widening as she shook her head and muttered, "I will never understand guys who to run into burning buildings."

"You chase murderers," he shot back sarcastically.

"Not if they're on fire."

God, he liked this woman, Severide thought as they rounded the corner just in time to see Casey call out and lunge at a hooded figure. The two wrestled to the ground as the guy in the hood pulled out a wrench and was ready to strike Casey with it. Before Severide could move to jump in, Erin stepped in front of him with her gun drawn and called out, "Chicago PD! Drop it!"

The guy from Lindsay's photo looked up at her in surprise while Severide helplessly watched the scene play out from behind. He didn't do helpless but if he moved, something could go wrong. He wouldn't risk Casey's life, so he resigned himself to letting the hottie with the gun handle it.

"Put down the wrench," Erin repeated, her hands steady as she pointed her weapon at the thug's head, "or I swear I will put you on the floor."

His attacker's momentary hesitation gave Casey enough leverage to move away from the line of fire, but Keeler's goon wasn't giving up that easily. He reached out and lunged for Detective Lindsay, taking away her clean shot. The thug got in one good swing of his wrench before she outmaneuvered him and had him up against the wall before anyone knew what was happening.

"I said drop the wrench," Erin hissed menacingly into the hooded man's ear and this time he did what he was told. The wrench clattered to the ground as the detective grabbed his wrists and twisted them behind his back before handing him off to Officer Atwater, who had suddenly arrived on the scene. Glaring at the idiot who had dared pick a fight with Detective Erin Lindsay, she barked, "Take him down to the district. I'll be right behind you."

She turned to where Severide had kneeled next to Casey and asked, "Are you alright?"

"Thanks to you," Casey answered slowly, nodding his thanks up to her.

"You're bleeding," Kelly stated, suddenly standing up next to her. Erin's hand immediately flew to her face and she suddenly realized her jaw hurt like hell.

"Son of a bitch," Erin replied, her fingers settling over the spot where the wrench had torn her lip in two. "Lucky for me, his aim sucked."

"Stop," Kelly commanded, moving her smaller fingers away with his own and guiding her to a nearby bench, "Don't touch it. Let me see."

"I'm fine," she replied stubbornly, but didn't move away as he gently wiped away the blood with a clean cloth. The cloth was medicated with some kind of antiseptic and Erin hissed at the sting as she looked up to see that some more members of Firehouse 51 had joined them in the hallway.

Kelly's eyes zeroed in on her and then he teased quietly, "You took a wrench to the face but a little antiseptic makes you wince?" Erin could only glare at him because he quickly replaced the medicated cloth with a clean one and applied some pressure to her lip as he continued, "It's red, your blood. I was sure it was blue."

Erin grimaced at his bad joke, which caused her face to hurt even more, as she shot back, "I've been taking my vitamins."

Kelly grinned at her and said, "Well, vitamins or not, you may need some stitches. You should let one of our paramedics check you out."

"I'll be fine," she repeated but jumped slightly as his gentle fingers swept over her jawline. But it wasn't from pain…no, this jolt of electricity had nothing to do with the wrench that had come in contact with her jaw and everything to do with the sexy firefighter who was carefully examining her face.

When her hazel eyes connected with his baby blues, Erin knew he felt it too. Kelly's breath was warm on her skin as he whispered huskily, "This is going to bruise. We should get some ice for..."

"Here, put this on it."

An ice pack was suddenly shoved between them, breaking the moment. Erin looked up to see a pretty blond smiling down at her as she handed her a blue ice pack. Disentangling herself from Severide and standing up, Erin practically moaned in relief when the cool ice hit her aching and suddenly overheated face. Smiling as much as she could at the paramedic, she said, "I have to get back to the station. Mind if I take this and bring it back later?"

"No problem," Shay replied, looking back and forth between Severide and the pretty detective. With a smirk, she added, "You know where to find us."

Feeling a little silly to have an ice pack plastered to her face, Erin turned to Kelly and said, "Officer Burgess here is going to take your statements, but it wouldn't hurt for you to come down to the district when you get off shift so we can set up some kind of protection for you. Vince Keeler isn't going to like what happened here tonight."

Kelly nodded as Erin spoke quietly to Burgess and then headed off down the hall. He suddenly felt an elbow in his gut and looked over to see Shay grinning at him.

"What?"

"Damn, that was hot!"

Kelly shook his head at his friend and teased, "A girl with a gun? That's what turns you on?"

Shaking her head and patting him on the shoulder, Shay teased, "Not me, buddy. Not me."