Sarah Michelle Gellar and Billie Eilish just might be the duo we never knew we needed.

On Wednesday, Eilish was answering fan questions on her Instagram account when one asked her to reveal who she had a crush on as a child. The singer responded by only posting a picture of Gellar as her character, Buffy, from the hit show "Buffy the Vampire Slayer."

Fans weren't the only ones who took notice, however. Gellar herself reacted to the confession, reposting the image to her own page with the caption,

"I’m dead. That’s all. I’m not a child anymore, but I totally have a crush on @billieeilish Ok… now that’s really all."

Gellar has been married to fellow actor Freddie Prinze Jr. since 2002. The couple has two children together, who Gellar said are finally being introduced to the world of Buffy. She previously told Entertainment Tonight,

"My boy was into it for the villains, and my daughter was into it for the love stories."

But Gellar isn't feeling the love from just Eilish. Originally airing from 1997-2002, "Buffy the Vampire Slayer" celebrated its twenty-fifth anniversary in March. Gellar celebrated on Instagram with a throwback where she wrote,

"25 years ago today I had the honor to introduce the world to my version of Buffy Anne Summers. It was an uphill battle. A mid season replacement, on a new network based on a movie, that was by no means a giant success. But then there was you. The fans. You believed in us. You made this happen. You are the reason 25 years later we are still celebrating. So today we celebrate you as well."