Let it see the world, don't hide the ugly and only show them the beautiful - they will grow up and become overwhelmed of the truth.
Let them run around naked for as long as they want - they'll never be allowed to again.
Let them tell you stories, and you write them down in Haikus and read them back when they grow up.
Take them to your home, don't differentiate any of it - they can choose where home is or say no to both.
Tell them you love them as much as you can, every time their heart breaks they'll know they still have you.