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