Kiki Korsak is introduced off-screen beginning in Doomsday, as Korsak's "life coach", later girlfriend and finally his wife.
In Bridge to Tomorrow, Korsak says that he is buying the Dirty Robber as a result of Kiki's coaching. Also in that episode, Jane comments that Kiki must be very special; when Korask notes that Kiki has a strict rule against getting involved with clients, Jane suggests that he fire her.
During In Plain View, Korsak is working to improve his vocabulary at Kiki's suggestion.
In Family Matters, Angela points out that Korsak lights up every time he mentions Kiki. Due to Kiki's encouragement, he takes the lieutenant's exam. Later, Korsak says that they are meeting at the Dirty Robber to talk about winding down their professional relationship.
Her first physical appearance is in Love Taps but she is mentioned multiple times before that.
In Sister Sister, Korsak says that Kiki is afraid of big dogs, because she was mauled by a Rottweiler as a child. So Korsak cannot have any large dogs as a result.
In Scared to Death, Korsak proposes and Kiki says yes.
In A Shot in the Dark, Kiki and Korsak get married at the Dirty Robber surrounded by friends and family.