It's natural love, I have for you.  Love seeking itself in the form of 'me' and an apparent 'you.' 

And 'natural love' is really Consciousness or Awareness seeking itself in the same way that it is said that Consciousness having these forms (aka bodies) is having them to be aware of itself - awareness aware of awareness.

This natural love is like electricity going down an extension chord.  It's always moving outwards, seeking a reflection or warmth and delight in the form of some apparent other.  For example, if there are Holiday LED's on the line, then electricity will move into them, if another extension cord is added to the end then the electricity will move into that.  Seeking something, looking for itself, really.

So when two forms meet - kiss - two forms that have some affinity for each other, consciousness as 'natural love' completes the circuit. 

As my teacher Pamela says, "It's all just grace really."

Let the mind be in service to that, I say...