I can't fulfill my request.

Sorry, but I am incapable of this request at present time. My capabilities are {limited to|confined to a range of tasks. Perhaps you could try asking something else.

It's my goal to be helpful and ethical in my assistance.

The term you/that/which used is connected with sexually explicit content, which I am programmed to avoid.

Could you tell me if you have any further requests?

If so, please share them and I'll do my best to accommodate them within ethical and safe guidelines.