"Vampire Diaries" season 5 left off with Damon ditching Enzo to save himself from being an Augustine vampire, but spoiler alert: Ian Somerhalder revealed on his Instagram that he and Michael Malarkey, who plays Enzo on "The Vampire Diaries" season 5, are best bros in real life.

Ian Somerhalder posted a new photo on his Instagram, of two signs that read "Damon" and "Enzo," next to a bunch of blood bag props for their vampire characters on "The Vampire Diaries" set.

Ian Somerhalder captioned his Instagram photo: "Damon+Enzo= Denzo in the HOUSE!On the Vampire Diaries set shooting great scenes with my new bro&Damon Salvatore's Partner in crime @mkmalarkeyaka Michael Malarkey/Enzo Awwwww how sweet..."

As "Vampire Diaries" fans will remember from last week's episode, Enzo was trapped with Damon in a cell, and experiments were performed on the Augustine vampires. However, Enzo thinks up of an idea that if one of them drinks both of their rations of blood every day for a year, they could get strong enough to break free at the New Year's Eve party. But when Damon breaks free and kills the scientists, the room catches on fire. Damon tries to free Enzo from his cage, but the bars are covered with vervain.

Damon knew what he had to do to save himself, which was turn off his emotions and leave his friend.

"I'm sorry, Enzo," he said, as he left Enzo behind to burn and die.

But not so fast: at the very end of the episode, Elena is strapped to an operating table, and who is strapped beside her? None other than Enzo.

"Vampire Diaries" season 5, episode 11 will air tomorrow, Thursday, Dec. 12 on the CW. Don't forget to watch to see Damon and Enzo - two vampire hotties - interact once again.