Katherine comes on to Stefan in this Vampire Diaries GIF. That's a common theme of her.
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Who says Katherine is bitter and mean and angry all the time? Look at how sweet she is here.
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Katherine has a way with men in bed. It must be this lovely face.
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Katherine is often down for a party. Even if she's the only one attending.
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Hit me! Katherine is alway up for a drink, be it coffee or whiskey.
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Katherine is always up for a good time on The Vampire Diaries. She doesn't like sour pusses.
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Katherine offers up some advice to Elena in this Vampire Diaries scene. The two have a lot in common.
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Katherine Pierce is not shy about her body. Case in point? This memorable Vampire Diaries scene.
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Vampire Diaries Quotes

Elena: I wanna remember.
Damon: Well you're a day late and a dollar short honey.
Elena: I mean I wanna try. Knowing there is this whole piece of my life missing it's driving me crazy, ok? So I have to at least try to get it back.

Damon: You know what they are? Children. Like lighting a candle's going to make everything OK, or even saying a prayer. Or pretending Elena's not going to end up just like the rest of us murdering vampires. Stupid, delusional, exasperating little children. And I know what you're going to say: 'It makes them feel better, Damon.' So what? For how long? A minute, a day? What difference does it make? Because in the end, when you lose somebody, every candle, every prayer is not going to make up for the fact that the only thing you have left is hole in your life where that somebody that you cared about used to be. And a rock with a birthday carved into it that I'm pretty sure is wrong. So thanks, friend. Thanks for leaving me here to babysit. Because I should be long gone by now. I didn't get the girl, remember? I'm just stuck here fighting my brother and taking care of the kids. You owe me big.
Alaric: I miss you too, buddy.