Ian Somerhalder and Paul Wesley appeared at a fan event in Florida and made it clear what Team they are on. Just told tell Edward Cullen.
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The men are ready to take down Katherine on the episode "Masquerade." They look ready for battle, don't they?
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Don't be fooled, folks. Stefan isn't dancing with Elena here. That's Katherine.
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What could be on the minds of Stefan and Damon here? Our best guess: the death of Katherine.
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Damon does not look at all pleased with Bonnie in this photo, does he? We wonder if these two will ever hook up.
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Katherine attends a Masquerade Ball with Stefan on the aptly-titled episode "Masquerade." She seems to be taunting the vampire in this scene.
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Look at Damon in the background of this scene. He sure looks suspicious, doesn't he?
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Katherine is on the prowl on the episode "Masquerade." Most people at the party think she's Elena.
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Careful, residents of Mystic Falls. This is Katherine, not Elena, attending a party on the episode "Masquerade."
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Damon and Alaric are ready to kill. They plot to take down Katherine on the episode "Masquerade."
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Caroline is coming into her own as a vampire. Even Damon has to be impressed by how strong she's become.
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Damon looks downright dashing in this shot from "Masquerade." The vampire sure knows how to dress up, doesn't he?
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Vampire Diaries Quotes

You want a love that consumes you. You want passion and adventure, and even a little danger... I want you to get everything you're looking for. But for right now, I want you to forget that this happened. Can't have people knowing I'm in town yet. Goodnight, Elena.

Damon

The best revenge is patient, cultivated. Nobody sees it coming until it's too late.

Enzo