My 10year old son and gay porn

I want to add, and strongly emphasize, that embarrassing him about any of this, especially at his age, can be very damaging. Him saying "Idk" tells me he's embarrassed and anyone would be, even most adults. But especially at his age, and especially involving looking at same sex porn. Assuming he is already embarrassed, I think you should try to minimize that and do it right away, before going any further. I can't emphasize that enough.

One of the problems with porn viewing is that having conditioned himself to seeing beautiful porn models, when he is old enough to look for a boyfriend (I assume he is probably gay) he will be disappointed because most boys and men in real life don't measure up to that level of attractiveness. That could make it difficult for him. You might explain that to him (maybe) as one way to explain why viewing porn isn't good. But definitely make him understand that he's normal. Don't allow him to believe in his mind, whether from his own thoughts or those of others, that there's anything wrong with him, either because of being gay or being attracted to pictures of men. Provide him with healthy ways of exploring his sexuality. You will have to make him feel comfortable in order to have open communications.