Sarah Michelle Gellar is reliving her "Buffy the Vampire Slayer" days!

The actress took to Twitter to share an adorable photo with "Buffy" costar Anthony Stewart Head -- aka her old Watcher, Rupert Giles.

".@AnthonySHead Best surprise visit ever!! It's #CoolToBeKind," she tweeted. "Thanks for the bracelets." In the pic, the two posed with bracelets for Cool to be Kind, an organization dedicated to promoting kindness to animals started by Head. 

The actor, who stars in Syfy's "Dominion," recently revealed that he still wants to do the Giles spinoff, called "Ripper."

"You know what? I would do it. I would do anything to work with Joss (Whedon) again," he told Vulture. "He's a wonderful storyteller, a great director, and a lovely man. I would love to, you know? Whether it's Ripper or something else..."

We would love to see that happen!

SMG and Head aren't the only "Buffy" stars who are feeling nostalgic!

Whedon recently tweeted a photo of Buffy slaying a vampire at the request of a fan who asked for more "Buffy the Vampire Slayer."

Who doesn't want more "Buffy!?"

Click "Launch Gallery" above to see the rest of the cast, then and now. 

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