por·no·gra·phy
- the depiction of erotic behavior (as in pictures or writing) intended to cause sexual excitement
- material (as books or a photograph) that depicts erotic behavior and is intended to cause sexual excitement
- the depiction of acts in a sensational manner so as to arouse a quick intense emotional reaction <the pornography of violence>
As a result, there's absolutely no difference between someone who produces fully clothed death scenes and someone else who produces explicit necro rapes. They both know very well in which way their products will be consumed - and that makes them both pornographers.
And there's nothing wrong with it (as long as it's been done by consenting adults), sexual entertainment should be as high regarded as any other profession. There's a whole world full of things much worse than causing sexual excitement.
The question isn't if what you're doing is porn, the question is... why aren't you proud that it is infact porn?