I only recently got into TVD, binge watching it on Netflix, and it's brought me back to this habit of envisioning the characters my way. I work off the canons (which I'll mark by episodes) and transform it to fit. Transcripts are from The Vampire Diaries Wiki site and I don't own any of it!

Did they really think that a young vampire wouldn't be affected by drinking Klaus's original, hybrid, thousand year old blood?

Season 3 Ep 11: Our Town

Klaus goes to Caroline's mother's house, to heal her from Tyler's bite.

[Caroline is lying on her side in her bed, with her right arm under her head. Klaus enters the house and smiles slyly at Matt as he passes him.]

Caroline: [weakly] Are you going to kill me?

Klaus: [softly] On your birthday? You really think that low of me?

Caroline: Yes.

[Klaus examines her bite.]

Klaus: That looks bad. My apologies, you're what's known as collateral damage. It's nothing personal. [He touches her bracelet.] I love birthdays.

Caroline: Yeah. Aren't you like...a billion, or something?

Klaus: Well you have to adjust your perception of time when you become a vampire, Caroline. Celebrate the fact that you're no longer bound by trivial human conventions. You're free.

Caroline: No, I'm dying.

[Klaus sits on the bed next to her and whispers to her.]

Klaus: And I could let you die, if that's what you want. If you really believe your existence has no meaning. I thought about it myself, once or twice over the centuries, truth will be told. But I'll let you in on a little secret. There is a whole world out there, waiting for you. Great cities and art and music, genuine beauty. And you can have all of it. You can have a thousand more birthdays. All you have to do is ask.

Caroline: I don't wanna die.

[Klaus lifts Caroline's head up and offers her his wrist.]

Klaus: There you go, sweetheart. Have at it.

Caroline's cloudy werewolf venom addled brain registers what he's doing, she bends her aching neck as best as she can into his hold for support. He had already bitten his wrist and she could smell the power emanating from it, her saving grace was in that blood. She's too weak to bring out her fangs, but thankfully Klaus pushes his wrist to her mouth.

The first drop that touches her tongue burns, she can tell it's healing her immediately. She has a brief thought that she should pull away now, but she can't, he's cradling her against him and he hasn't taken his wrist away so she goes for more.

"Happy birthday Caroline" Klaus whispers into her sweet smelling hair and she takes it as more of an invite to keep at it. Her fangs come out and she bites down. A soft sigh from him makes her pick up the pace, dragging in the blood so freely pouring from her bite.

She can move better now and feels herself turning into the embrace more, pulling her arms out from under the covers she holds his wrist to her mouth with her left hand, while her right hand finds his thigh. Her eyes are pulsating from the intense urge to continue and she looks up at him and digs her fingernails into him.

Klaus can see she's had enough, more than enough, at the feeling of her strength grabbing on to him. He revels in the look she's giving him, that bloodlust under hooded eyes. But, he breaks the eye contact looking towards the hallway, hearing Matt and her mother coming towards them, Caroline must stop.

"Save some for later, love." He mumbles as he quickly pulls away from her, knowing that she has the strength to stay sitting up all on her own now.

Caroline doesn't know it but her face is pouting like a chastised child, who had her toy taken away from her. He smirks at her, and says "Goodbye for now" as he vanishes out the window.

Liz and Matt make it into her bedroom just in time to see the curtain swing back to its original place, she goes to her daughter's side.

"Are you feeling better?" she asks very rushed, noticing that there's blood on her lips, Klaus's blood.

Caroline groggily says "Yeah, mom. I'm gonna be okay," she fidgets and puts her hand up to her own mouth feeling the leftover heat and the remaining blood, "just still a little tired."

"I'm so glad, sweetie." Liz kisses her temple and whispers "get some rest." as she tucks her back under the covers.

Matt smiles at her a little sadly, knowing how close he was to losing her tonight. Caroline closes her eyes, they turn off the light and leave the door open just a little so the light from the hallway gives the room just the hint of golden hue on Caroline's hair.

As soon as Caroline senses they've gone back down the hallway, she quickly speeds to the window Klaus went out of. Looking out and seeing he's nowhere in sight, she touches her lips again, they somehow feel different to her. As Klaus's blood pumps through her, she wanders back to bed in a daze and licks the remaining blood off her lips feverishly before drifting off to sleep.