Credit: The CW

The Vampire Diaries is known for its crazily unexpected plot twists and we can only imagine the show is going to up the ante for its 100th episode. There’s been a lot of talk about the “scandalous behavior” in which Caroline (Candice Accola) will be engaging. There are a lot of theories that involve a much-anticipated Klaroline hookup, but one Tumblr user has their own hunch: Will Caroline and Damon (Ian Somerhalder) hookup in Thursday’s episode? We outline the evidence that could suggest such a shocker.

Caroline’s behavior will make people cheer and boo.

According to Zap2it, “Caroline ‘scandalous behavior’ is ridiculously scandalous. In fact, that's the biggest understatement of the year. It will have fans simultaneously cheering and booing. So many mixed emotions. Expect things to get extremely complicated.” Boo, you say? This reaction sounds much more in line with a Caroline/Damon hookup than a Klaroline one, the latter of which has a seriously hardcore shipper fanbase behind it.

She has to fess up to Elena, Stefan, and Tyler.

According to the synopsis for Season 5, Episode 12 ("The Devil Inside"), "Caroline makes a stunning confession to Elena, then has to face the consequence of her actions with Stefan and Tyler." These three characters are all people who would be particularly affected by a Caroline/Damon hookup: Elena because she loves Damon; Stefan because Damon is his brother; and Tyler because he is probably against Caroline sleeping with anyone (there are totally unresolved feelings there).

Elena is upset about whatever went down.

As we see in the promo photos for the subsequent episodes, Elena is pissed about whatever went down in the 100th ep. We see Damon desperately trying to talk to her in the snapshots for Episode 12 and Caroline trying to do the same in the promo photos for Episode 13. Elena doesn’t seem to be having any of it.

We don’t actually see Klaroline kiss.

Though there has been much speculation about a Klaroline hookup — particularly due to this Australian promo that shows Caroline leaning in for a kiss — we never actually see anything happen between these two. But, an almost-hookup with Klaus that went afoul — i.e. if Klaus rejected Caroline for some insane reason — then we could see her getting drunk and making a bad, bad decision with Damon. Otherwise, it’s hard to understand why Caroline would ever hook up with someone she hates as much as Damon.

Damon is in self-destructive mode.

In the mid-season finale, Damon made it clear that he didn’t want to be with Elena because he didn’t want to change her for the worse, yelling: “Stop defending me! I can’t change who I am, but I refuse to change you.” Cue Damon’s self-destructive mode. We have a feeling he is about to turn to the dark side, and that could easily start with a hookup with Caroline. What better way to ensure Elena stop trying to get back together than hook up with her best friend and roommate? It’s totally low and exactly the kind of wrong move Damon would pull for the right reasons. Classic Damon!

Do you think Caroline and Damon will hook up in the 100th episode? Sound off in the comments below!

Catch the next episode of The Vampire Diaries on Thursday, January 23, 2014 at 8 p.m. ET on the CW, followed by an all-new episode of Reign.

Kayti Burt is a contributing writer for Wetpaint Entertainment with a penchant for all things pop culture. Follow her on Twitter and Google+!