It's been month since Walter saw Paige and team centipede at interview and he thinks about Paige all time. Paige thinks about Walter all time.
Paige is sitting on couch eating pizza when Ralph comes home
(Paige) hey sweet heart how was school
(Ralph) it was ok how was your day
(Paige) fine I had ultrasound today you are getting a sister
(Ralph) that's great I'll be good big brother
(Paige) I know you will
Next day Walters garage after Ralph gets out of school he goes to see Walter
(Walter) hey Ralph what are you doing here
(Ralph) I have somthing to tell you that mom won't she's pregnant your having daughter
(Walter) what I'm gonna be dad I can't believe it
(Ralph) I have to go home but I'll talk to you later
(Walter) wait Ralph I'll take you home
(Ralph) ok let's go
Walter drops Ralph off then goes home Paige is at office with others when a lawyer comes in
(Paige) can I help you
(Lawyer) Paige you been served you are to appear in court in Cusoty of unborn child.
Paige yells at Ralph when she gets home
(Paige) do u have any idea what you've done Walter is suing me for cusoty.
Few weeks later in court room
Miss Dineen you will let me O'Brien be with you during pregnancy and spilt custody you can't keep it from him just cause you don't like him. So you to will live together for next few months . Walter Paige go home together with Ralph and go separate rooms and call it a night. Walter and Paige go to ultrasound appointment and feels baby kick and they finally share moment of bliss.
Over course of next few months they grow closer and are almost back together. When one night 5 am Paige goes into labor and it goes very quick and next thing they know Walter is holding his baby girl when They name her Katharine O'Brien and Ralph comes in and Walter talks to him
(Walter) hey bud do u wanna hold your sister
(Ralph) yes I do
(Paige) support her head sweetie
(Ralph) I am
They smile at their babies