My eyes saw you and sent a warning straight to my brain
My heart started pounding in my chest like a runaway train
I felt my hands start to sweat
And my knees start to buckle
A shiver down my spine
And I knew I was in trouble
Never dreamed forever could've ever
Fell together like this

All it took was one kiss, one touch
And like a long line of dominoes
I'm fallin' in love
It's a physical, spiritual, chemical, strong attraction
Girl, you've started an unstoppable chain reaction

The way you smile at me
It ignites an undeniable spark
The way you walk through a room
Is enough to make a fire start
Like the lightening flashing
And the thunder rollin'
I'll follow you wherever you're goin'
Now I've got a reason for believin' in a feelin' like this

And all it took was one kiss, one touch
And like a long line of dominoes
I'm fallin' in love
It's a physical, spiritual, chemical, strong attraction
Girl, you've started an unstoppable chain reaction

And all it took was one kiss, one touch
And like a long line of dominoes
I'm fallin' in love
It's a physical, spiritual, chemical, strong attraction
Girl, you've started an unstoppable chain reaction

Girl, you've started an unstoppable
Started an unstoppable
Started an unstoppable chain reaction
Yeah