From Blossom to Big Bang! Mayim Bialik and Johnny Galecki relived their teen years during an appearance on Conan on Wednesday, February 24. The actors reenacted their kiss from Bialik's show Blossom, which they originally aired 25 years ago.
"Two of you have a history that goes back quite a way," host Conan O'Brien told the cast. "Johnny and Mayim, you worked together as kids on the show Blossom. Johnny was a guest star."
Bialik recalled that they were 14 at the time. "First stage kiss for us both," Galecki said.
"Yeah," Bialik replied. "It might have been my first real-life kiss, also."
Bialik starred on the beloved series, which ran for five seasons from 1990 to 1995, alongside stars including Joey Lawrence and Jenna von Oÿ. Galecki played her friend Jason in one episode.
The longtime pals blushed on Wednesday as they looked back at a photo from the Blossom scene — and were dared to smooch again.
To see their kiss, watch the video above!
For access to all our exclusive celebrity videos and interviews – Subscribe on Youtube!