Well either your okay with the porn or your not....so in a way you are making him make a choice.
Now most people don't mind porn and even enjoy it.
If you can live with it then tell him you don't care if he watches porn but you don't appreciate him hiding it from you....but if you cant stand it then honestly I think you need to ask yourself why and decide whether it is worth it...pick your battles.
But certainly the hiding is what seems like the biggest problem to me...honesty is critical for any relationship.
Completely baffled by a backward indication
That an inspired word will come across your tongue
Hands moving upward to propel the situation
Have simply halted
And now the conversation's done
I am the EgGmAn