Tina Fey has said that Liz's relationship with Jack is "somewhere between Mary Tyler Moore and Lou Grant, and Han Solo and Princess Leia." Fey previously stated that there would not be a romantic relationship between the two, as it would be "too icky." More recently, however, she admitted there is sexual tension between Jack and Liz. Jack passes Liz off as his girlfriend to make ex-wife Bianca jealous and Bianca tells Liz in one scene that "I can tell from the way he looks at you that he's serious". Colleen Donaghy, Jack's mother, thinks that Liz is a perfect match for Jack. In "Do-Over", Jack and Liz attempt to win over temporary head of GE, Kathy Geiss by pretending to have a soap opera-style real life relationship, escalating to the point where Geiss wants the two to kiss each other (her shouting "KISS!" marks the only time Kathy Geiss has spoken in the entire series); there is a pause, but Jack and Liz refuse.