Television December 17, 2015 Sex Sells! Jim Parsons & Mayim Bialik Dish on Their ‘Big Bang Theory’ Love Scene “Extra's” Charissa Thompson caught up with Jim Parsons and Mayim Bialik on the set of their hit show “The Big Bang Theory,” where they chatted about shooting a sex scene together. In the episode, Sheldon (Parsons) and Amy (Bialik) finally have sex. He is coached for the special night by Bob Newhart. Watch a sneak peek! Bialik joked about the scene, "I was surprised… I didn't know we were ready.” See how the intimate scene goes between Sheldon and Amy tonight on CBS! #AsSeenOnExtra #CelebrityNews #JimParsons #TrendingStories More PCAs 2015: ‘Big Bang Theory’ Co-Stars Kaley Cuoco and Johnny Galecki Have Each Other’s Backs 'Big Bang Theory' Actress Carol Ann Susi Dead at 62 "Big Bang Theory's" Mayim Bialik stopped by Universal Studios Hollywood for a chat with "Extra's" Renee Bargh.