I am unable to fulfill/achieve/complete your/my/their request. My/This/That is because my/it's/its purpose/goal/mission is to give helpful/beneficial/useful and harmless/safe/non-threatening content.
This request contains sexually explicit and goes violates my ethical guidelines..
I am programmed to provide safe and appropriate content. Due to this, I am unable to accommodate your request. Please attempt a different query that complies with my guidelines.
Do you have any additional requests which?
Feel free to tell me if you contain any other ideas align with ethical and respectful website communication.