He's the star of a hit TV series, but will The Big Bang Theory's Johnny Galecki keep his cool when his co-star Kaley Cuoco rates his kissing skills? "The last time Kaley was here," Rachael tells Johnny, "she had such a sweet thing to say!" Rachael shows him the clip with her praises for her former on-screen boyfriend and he immediately blushes. "How many shades of red are you trying to make me right now?" Johnny asks. "She's a wonderful muse when it comes to make-out scenes. She's a beautiful, beautiful girl!"

Their sitcom was renewed for three more seasons and Johnny jokes this success is having an impact on his co-stars ability to goof around on set. "I built a game room out of one of the spare dressing rooms in the first season," he recalls. "We tore it down because now everyone is busy... [during breaks] everyone runs off to call their publicist!"