Just tell him what is okay and what you find over the edge and won't do. If he likes you, he won't have a problem with it. If you two would one day become a couple he'll get to see those parts of you later on. And if you don't than he has to know where the edge is between okay and a bridge too far!
Tell him you're concerned about privacy/leaks and that you're just not comfortable with the idea, that you wouldn't even send nudes to Ryan Gosling. If he gets mad after that it's because he's being an asshole, because you were not mean (at least not in my book).
there is no way to say that to him.. just be point blank blank about just tell him why you do not like it if you need to swear to do it so be it... if he does not like that it hurt is feeling's.. tell him to get a cat or a dog
Just say no, I don't do that sort of thing. If he doesn't stop asking tell him to fuck off. I don't understand why people send nudes to other people, usually they end up somewhere on the internet, and millions of people look at them
By just telling him that your not comfortable with sending those pictures is okay... Your not mean by doing that, your just letting him know you don't like doing it... If he's not okay with it, then he's a jerk !! 😉