**The Ease of Working with Kaley Cuoco:** Parsons continues, "Obviously, as different as she and I are—certainly as different as the characters are—that may not seem like the most logical thing to say, but as performers, she and I work very easily together."

Cuoco has also praised Parsons' at the start, stating that the two hit off in the audition room prior to Cuoco trying out for her role on the show.

**The "Shockingly Easy" Kiss:** "It was really fun—and, very honestly, really easy," he revealed.

"The first time we rehearsed [the kiss], it was literally just like an extension of the verbal dance we've been doing for eight and a half years. It's always awkward to a degree, but this was shockingly easy. We had so much fun."

**The Challenging Kiss with Mayim Bialik:** Jim recalls the experience, "I was sick with something, like a bad respiratory cold.

And it was ironic because I always took care of myself, and here I am sick during one of the very rare times I have to kiss her. And kiss her several times because I knew we’d have to do several takes. I was like, This is unbelievable! I felt bad about it, I really did."

**Professionalism and Adversity:** Parsons credited his co-star for keeping things professional and positive on-set, despite his illness.

Bialik felt sorry for Parsons was visibly ill during the shoot. Just so she wouldn't get sick, Bialik gargled peroxide in-between the several takes.