My cousin is curious about girls. What should i do?

Ok so first off i'm 17 and my cousin is 11 we're both boys and as far as i can tell both straight. Well he first started asking to see a picture of my girlfriend which i in turn showed him only to have him admit to wanting to see her with less clothes on. Naturally i wouldn't show him any pictures like that. But a couple days later (which would be today) he was playing on my phone on the app called "iFunny". He was just scrolling through collective which has some bad pictures on occasion and when i saw he was on my phone i asked him what he was looking at and he quickly exited out and said nothing. Now seeing as i'm on an iPhone i could easily re-open what he was last on and it turned out to be a pic of a girl in her bra and underwear. Well he looked very ashamed and i told him that its ok and that we would talk about it later tonight. That was about 45 minutes ago and i just want to be prepared for when he brings it up since i told him i would talk to him about it later. What should i say?

I think you're in the wrong category. Sorry

You shouldn't really say that much to him. It's totally normal for a boy around his age to show an interest in girls. I would just reassure him so he knows that it's normal to be interested in girls, but tell him not to do it on your phone, as you don't like it and that you have a girlfriend. (Your girlfriend might see women on your phone and think that it was you looking at them).It's totally normal however for him to be doing this. Hope I helped.