Olivia: In The Winter, Springtime, And Fall ...
In The Summertime, I Call You A Friend For All Seasons.
A Friend, So Many Reasons Why I Like To Be With You.
Just Like Nature, We Change, Too.

(Here, I Think David Sings Something, Then Repeats What Olivia Sang)

David And Olivia: Winter, Spring, Summer, Fall.
I Wanna Spend 'em All With You.

Olivia: My Friend!

David And Olivia: Winter, Spring, Summer, Fall.
I Wanna Spend 'em All With You.

Olivia: My Friend!

David And Olivia: Winter, Spring, Summer, Fall.
I Wanna Spend 'em All With You.

Olivia: My Friend!

David And Olivia: Winter, Spring, Summer, Fall.
I Wanna Spend 'em All With You.

Olivia: Winter Is Cold, The Ice And The Snow.

David: Springtime Is Warm; We Watch The Flowers Grow.

Olivia: And The Hot Sun Of Summer Makes Us Throw Away Our Cares.

David: Autumn Leaves ... (maybe Something About Frosty Air?)