‘The Big Bang Theory’ of kissing: Johnny Galecki and Mayim Bialik ‘Blossom’ as they lock lips

Johnny Galecki and Mayim Bialik locked lips when “The Big Bang Theory” cast stopped by Conan O’Brien’s show to celebrate their 200th episode. Their latest talk show appearance saw Galecki and Bialik kissing at the urging co-star Kunal Nayyar, who dared the two to recreate their 1991 kissing scene from “Blossom,” a popular 1990s NBC sitcom in the US that made Bialik famous. O’Brien did his research well before asking the two actors about their initial meeting.

“We were both 14. We kissed,” said Bialik.

Galecki added that it was their first stage kiss though Bialik revealed that it might have been her first real life kiss, too. Finally, Nayyar said what everybody was expecting. He dared the two to kiss again. “Do it again!” he said. While Bialik denied the dare vehemently, the interview cut to the two clutching each other's faces for the most awesome smooch, writes E Online.

Soon things got a little hot and heavy as Kaley Cuoco, Jim Parsons, Melissa Rauch and Nayyar got into the action, leaning towards each other on O’Brien’s couch.

Watch Mayim Bialik & Johnny Galecki Remember Their Teenage Kiss - CONAN on TBS here.

Source: YouTube/Team Coco

It’s has all been about celebrations this week on “The Big Bang Theory,” as Episode 17 centred around Sheldon’s (Parsons) birthday party. The whole gang, which included Penny (Cuoco), Leonard (Galecki) Bernadette (Rauch), Howard (Simon Helberg), Amy (Bialik) and Raj (Nayyar), was also set for a more meaningful bash as CBS’ highly successful comedy series hits its 200th episode, titled “The Celebration Experimentation.”

The Feb. 25 run was one of the most memorable “The Big Bang Theory” episodes, especially with a cameo by original “Batman” star Adam West. Wil Wheaton, Sara Gilbert, John Ross Bowie and Christine Baranski have also signed up to return and join “The Big Bang Theory” cast members for the celebration.

Find out what happens next on “The Big Bang Theory” Season 9, which airs on Thursdays on CBS in the US. It airs Wednesday on Nine Network in Australia.