Thousands of hairs
Two eyes only
Its you

Some skin
Billions of genes
Again it's you

XX XY
That's why it's you and me

Your blood is red
It's beautiful genetic love

Biological
I don't know why I feel that way with you
Biological
I need your DNA
[ Lyrics from: http://www.lyricsfreak.com/a/air/biological_20400573.html ]
Your fingerprints
The flesh, her arm, your bones
I'd like to know
Why all these things move me

Let's fuse ourselves to be as one tonight
Apart of me would like to travel in your veins

Biological
I don't know why I feel that way with you
Biological
I need your DNA