The words cut Kat like a knife. Dean's jaw dropped; she was what he hunted. The woman he loved was something he hated.

"You're lying!" Kat and Dean spoke in unison. She ignored his input.

"Well yeah kind-of" He smiled "... your half vampire" He laughed. "You shocked us, especially your father, I mean we had no idea that could even happen!; human-vampire hybrid ... well I'm afraid your just a ... weirdo sweetheart" He sounded giddy.

"I don't believe you" She shook her head. She couldn't be ... could she? No.

"Well its true baby-doll; I was sent by your father, Leon Redfern to retrieve you so that you could take your rightful place in our society, I tell ya babe if you weren't so ... spirited" He emphasised the word, looking her up and down as he spoke. "You could have been ..." He pondered his choice of words for a moment. "I suppose what you humans would call a princess" He bowed, mocking her.

"A vampire princess? Sounds like a bad teen novel" Sam laughed at her comment. Sam didn't care, whatever Kat was she was still his best friend.

"Fine don't believe me ... just answer me this have you ever done something that made you think 'how the hell did I do that?'" He attempted to impersonate her English accent.

"I- ..." She had many times. Not to mention she could see Reapers.

"And you got the bad ass vamp look going baby; pale skin, red lips, glossy hair" He bit his lip. Dean's eyes narrowed.

" But ..." Kat was confused, confused and scared.

"Let's ask your little friends shall we?" He turned to the Winchesters.

"... Kat you are fast, I mean that time you out ran the Hook man, you have hearing like a bat - sorry" Sam realised the unintentional pun in his sentence.

"You know things babe, things you'd have no way of knowing" Dean had witnessed her intuition on many occasions; Kat had always claimed it to be down to experience. He hated to admit it but it sounded plausible that she was something supernatural.

"Missouri told me that she couldn't read you, she said she felt a barrier of some sort" John's face was hard; he obviously didn't like what they had just found out. The thought of his son in bed with a monster.

"Well there you have it" Luther winked at her.

"No, no – I, I wear glasses, I faint around blood, I'm anemic for god sake!" She began to lose it, it couldn't be, no not her. Her thoughts were messy, she couldn't think straight.

"You wear glasses because your eyes are sensitive to light, us vamps don't fair to well in sunlight light" He took a few steps away from her.
"I'm not like you!" She directed that more to herself than Luther.

"Oh yeah you are; you faint around blood because your vampiric side is awakened abruptly and your human side can't handle it" He counted them off on his fingers. "By the way that should get easier to handle now you know the truth"

"But-" She had no idea what to say, she couldn't defend herself.

"And you were diagnosed as anemic because vampire blood is unable to self replicate like human blood, we can't carry hemoglobin in our red cells like they do. No hemoglobin, no iron atoms, no iron … to the average human doctor – anemia" It all made sense, her wounds healed quickly, she had great hearing, she was fast, strong. Deep down somewhere she'd always known she was different.

"But how has she survived all this time without blood?" Sam didn't care; she was Kat, his Kat the girl who had made his brother the happiest he'd been in a long time, who'd helped him when Dean couldn't and besides who was he to judge he's had strange visions and premonitions that no normal human would.

"Her human blood sustains her… just about" He turned to Sam ignoring Kat. Big mistake. "The medication she takes for her 'anemia' replenishes her blood but then the sexy little vamp in her uses it all up – vicious circle. Tell me my sweet are you tired all the time?" He didn't turn to face her; he kept his eyes on Dean.

"Yes" Her words were flat.

"Well a bit of human blood would fix that right up" He moved quickly, faster than Kat had ever moved. He appeared behind Dean. "I'm gonna go out on a limb here and say this one's your mate?" He smirked. Kat laughed.

"No he's not" Her words held conviction. Dean wondered if that was just to fool Luther or if their fight was responsible. "And I've got the Cult in my hand you move I'll put a bullet through your skull"

"Chill baby I'm not gonna to kill him" He used his thumb nail to make a small slice in Dean's throat. "You are … ya see a little blood won't overwhelm your human side" He smirked. Kat's vision got blurry, her heart began to pump faster and faster; the sound filled her ears. John pointed his cross bow at Kat.
"Don't you dare" Sam attempted to take it from his father. Kat breathed in the scent; it was amazing – sweet, dark, rich. Her eyes held a glint of red. She fought with herself – she wanted to regain control. She was the hunter, he was the prey, she needed control.

"Come on babe show us your fangs" Luther spurred her on. Just the mention of them was enough. She felt her canines extending, pushing down until she felt the razor sharp points resting on her lips. "Now do you believe me?" He pushed Dean forward, he fell to his knees. Kat lowered her head, hair covering her face. Then she lunged.