I'm All Yours:

For it is but love
That fills the heart,
That winds it up
And makes it start.

It ticks for hope
It beats for trust,
For all that it does
It all starts with lust.

For love is the stuff
The heart eats up,
Just pour in the water
And mix in a cup.

For a heart full of love
And all that good stuff,
Will tug at your heartstrings
And build up your trust.