Reese Witherspoon and Paul Rudd haven't aged since this epic 1996 selfie

Move over Kim Kardashian and Paris Hilton, Reese Witherspoon has submitted fool-proof evidence that she invented the selfie after posting an adorable snap she took over two decades ago.

Not only that, but Paul Rudd even joined her for the 24-year-old shot -- and it appears the "Little Fires Everywhere" star is having a hard time processing the discovery.

"Wait a second...," Witherspoon, 44, remarked Tuesday. "Did #PaulRudd and I take the 'Selfie' in 1996?"

By all means, the picture is most definitely a selfie by current standards. But what's really impressive is that the candid shot was taken without using a front-facing camera as they weren't in use yet. This means the then 20-year-old actress had no idea how the photo would turn out until after she had it developed.

The buzziest thing about the selfie is the realization that neither Witherspoon nor Rudd have aged a day since starring in "Overnight Delivery" together.

While Witherspoon has graduated from red lip gloss and blue eye shadow, she still looks very much the same as she did in 1996.

Same goes for the 51-year-old "Ant-Man" star, who joked about being a "certified young person" just last week.

Besides shocking fans, several of the "Legally Blonde" star's famous friends weighed in on the snap, with actress Selma Blair laughing in the comments, "'I'm in love with this relic fit for the smithsonian" while "Wonder Woman" star Gal Gadot hailed the Oscar winner for being a "trendsetter."

Interesting enough, Witherspoon has presented strong evidence that she "invented" the selfie, blowing a hole in Hilton's claim she snapped the first one back in 2006.

"O" magazine was more than happy to declare Witherspoon the de facto "inventor of the selfie."