A dark crossover story for CSI and The Vampire Diaries. Greg Sanders Has an unpleasant encounter with Katherine Pierce. Spoilers for end of Season 2 of vampire diaries and season 11 of CSI.

"This was supposed to be my night off" Greg Sanders thought as he approached the dead body, the man's neck and shirt were covered in blood and Greg was regretting that he had challenged the all you can eat buffet. Quickly he reached for his phone and called the body in, it was true that it wouldn't have to be him picking up the scene, but he would have to talk to the police, then again to the CSIs, losing most of the night in the process.

Brass and the CSI team didn't take long to arrive, Nick had taken his statement while Dave examined the body, he was carefully opening the corpse's fist, pulling a bunch of red feathers from between the fingers.

"Greg!" Nick waved a hand before him, "You sure you're ok? I could have the paramedics come and…"

"No!" he interrupted, "I'm fine, I was just hoping I wouldn't have to deal with this tonight"

"Yeah, I understand" Nick smiled, "Listen, you're done here, we can handle the rest" he placed a hand on his shoulder, "Why don't you go enjoy what's left of the night"

"thanks, Ill try" Greg smiled as he walked away.

It was half past twelve when he found himself at a bar in a night club, he'd been dancing for a while and his good mood was finally coming back when he was approached by a beautiful young woman. "Nice moves out there" she said between sips of a Bloody Mary.

"Thanks, I haven't even pulled out the big guns yet" Greg replied to the flirting girl.

"I can't wait to see them" she smiled.

"Greg" he said as he held his hand out.

"Katherine" the girl grabbed his hand and pulled him back into the dancing crowd.

He wasn't sure how it had all happened, but the next thing he knew they were up against her hotel room door, their lips barely parting for them to speak or catch their breaths while they fumbled with the key card to open the door.

"Nice room" he managed between gasps as she pushed him on to the bed.

"I know of something nicer" she said as she pulled her red feathered dress over her shoulders and head.

"Yeah" Greg grinned stupidly, "definitely nicer" a red feather landed on his nose, making him sneeze. He stared at the red feather as it danced around in the air between them.

"Is something wrong?" Katherine asked puzzled.

"That feather…" he whispered.

"Well, it took you long enough"

"What?" Greg raised his gaze just in time to see Katherine as she jumped at him, her eyes red and vicious.

Greg woke up the next morning as the sun shone over him; he was lying naked in the hotel bed, Katherine was up, combing her hair in front of the mirror. "Good morning" she said, she didn't turn but he saw her smile through the reflection.

"What…what did you do to me?"

"I was hungry" she shruged, "so I fed"

"You…you drank my blood"

"Yeah, oh and we had sex…several times" she turned around to face him, "You know, for some one with such a high amount of blood loss, you were quite vigorous"

"What are you?" he asked, remembering her eyes at the moment when she jumped him.

"Isn't it obvious?" she frowned, "I thought you were supposed to be some kind of detective?"

"CSI" he said as he slowly sat up, his whole body was aching and he felt weaker than ever, "You're a vampire?"

"What else could I be?"

"But vampires aren't…"

"Real?" she stood up and begun to walk up to him, "Is that bite on your neck real enough for you?"

He placed his hand on his neck, he could feel the wound burn and the dried blood covering his neck and shoulder.

"How about this?" she jumped on the bed, her black pupils surrounded by blood and veins, "Is this real enough for you?"

Greg tried to back away, but his back was already against the bed's headboard, "Don't worry" she smiled as she backed away, "I'm not gonna hurt you" she danced away, "Not yet anyway"

"I need a tour guide, and you, at the moment your too weak to do anything" she returned to the mirror and begun brushing her hair again, "I'll get you some room service, after your done eating, we can leave"

"Leave?" Greg said as he stood up, his legs wobbling under his own weight, "I'm leaving right now!". Slowly he walked up to the door, leaning on the wall for support he turned around and saw that Katherine was still calmly brushing her hair. He turned the knob and opened the door, he walked up to the frame and stood there staring at the hallway.

"I can't leave" he said, "Why can't I leave"

"You're mine now" she said calmly, "you are my little puppet, and you are going to do whatever I tell you to, whether you like it or not"

Katherine had been right, he did feel better after the large breakfast she had ordered for him, but even after he'd gotten his strength back, he still wasn't strong enough to walk through the doorway with out her permission.

"If you can control me" he said as he looked out the window, "Why allow me to try and fight it?" he asked, "Last night you made me do all sorts of things I didn't want to do, so why keep me…I don't know conscious, why not make me your little zombie?"

"First of all, last night I didn't force you to do anything you didn't secretly want to; and second, because zombies aren't fun" she walked up to him and smiled, "you, hopelessly struggling to fight my compulsion, it adds flavor to the mix"

"So why me then?" he frowned, "What's so special about me that you go through all this trouble to keep me captive?"

"Special?" Katherine laughed, "There's nothing special about you, you were just in the wrong place at the wrong time" she said mockingly to his face "In fact I had tried with another ordinary Joe last night, but I was so hungry I ended up sucking him dry" she sat down on the bed and looked up at him, "He was no good to me dead, so I needed a new..."toy", I was going to dispose of the body, but then who should happen to walk in" she looked at him her gaze making him feel foolish for thinking she actually needed him.

"You were as good a "toy" as any other"

"You won't get away with it" Greg said angrily, "My friends in the crime lab will catch you, they'll notice if I don't show up for work, between that and the dead man, they'll be on your trail in no time"

"We both know they'll never really suspect a vampire" Katherine smiled, "Sure they'll notice the coincidences, they'll joke around about it, but ultimately, they'll still be searching for a human suspect"

"Then they'll worry about me, the disappearance of a CSI is a big deal, we hold evidence to a lot of murder trials"

"They won't miss you if you call in sick" Katherine handed him his cellphone, "Make it believable" she said as she stared into his eyes.

Greg grabbed his phone and dialed Katherine Willows's phone, "Hi, Katherine" he said, "It's me Greg, Listen I'm not feeling too good; I guess I should stop hitting the one dollar buffets" right that moment he hated Katherine, her boss, for being so understanding; he wished she would order him to take some pepto and get to work, "Ok thanks, sure I'll get some rest" He hang up and handed the phone back to the Vampire Katherine.

"Boss's name is Katherine" she smiled.

"Small world" he replied coldly.

"Well, I have several things to do, and you're going to help me" she said as she stood up, "You can start by renting us a car, something nice…a convertible"

"How am I going to rent a convertible?"

"You have a credit card don't you?" she threw him his wallet, "And Greg, behave yourself" she looked at his eyes, "Don't do anything that would make me angry" her face suddenly turned cheerful again, "Go on ahead, I'll be down in a minute".

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