(The next day, Leo talks to Patty in the living room)
Leo: Patty, I have to tell you something, but I'm not sure how you will react so I'll just show you? Hold my hand
Patty: Ok (holds her daddy's hand)
(Leo orbs with Patty to the manor)
Piper: Leo, what are you doing?
Patty: Daddy? Where are we?
Leo: Patty, this is your mommy.
Piper: (realizes what Leo is doing) Prue!
(Prue runs in)
Prue: Yes mommy?
Piper: This is your twin, Patty
Prue/Patty: I have a twin. Why didn't we know
Piper: When you two were five, Patty orbed and I knew you were mine and Leo's daughter. I knew Prue's daddy, Dan wouldn't like that Patty wasn't his daughter. I tricked you two into drinking a potion and cast a spell on you two to make you forget each other, so I wouldn't constantly hear Prue ask for her twin, Patty.
Patty: Ok, I understand
Prue: I understand too