Can you be a sex addict in a relationship?

I need to have sex every day, sometimes more than once. My girlfriend also has a high libido, but however much sex we have, it’s never enough.

It is, I feel, quite worrying that a monogamous male suffering from nothing more sinister than a healthy sexual appetite, could even begin to contemplate that he might be suffering from some sort of pathology.

Sex addiction is not a clinical term, but it is widely understood to mean sexual behaviour that is out of control, high-risk and self-destructive.