Sex...

When The 'name' is enough.
When The only times 'lust' and 'love' are undifferentiated.
When you know the countless ways to gain 'satisfaction'.
When More then a cup of coffee, you know what is to be 'addictive'.
When its easier to Remember 'numbers'.
When you admitt being close to 'heaven'.
When 'creativity' redefines the artist in you.
When, sometimes the opposites 'attract'.
When the mutest of 'silence' is required.

When all of this come in no particular order
Then it should be close to guess.. That you know what is sex !