Sarah Michelle Gellar has unearthed an adorable and slightly embarrassing childhood photo of herself and actor Seth Green.

Long before the pair starred together in Buffy The Vampire Slayer, Sarah wrote that they had been “causing trouble” – although their outfits looked like butter wouldn’t melt.

She didn’t say what the pair were dressed up for, but they appear to be inside a theatre dressing room and both are looking rather rad.

Little Sarah, centre, is dressed in a satin pink dress with a fetching feather boa trim, while professional-looking Seth is swamped in an adult’s coat.

The trip down memory lane didn’t end there, as Sarah also pulled out a snap of Seth in Madame Tussauds in London as he got up close and personal with her Buffy waxwork.

Jokingly apologising to Seth’s wife Clare Grant, she wrote: “Hey @sethgreen remember that time you were “caught”…with my wax figure?!?

“Sorry@claregrant I promise it didn’t mean anything. (I think that’s @therock giving you the stink eye in the back).”

Seth starred as werewolf Oz in Buffy for three seasons. The friends have worked together many times, including on Seth’s show Robot Chicken.