What to do?

My bf wants nudes ALL the time. I don’t mind sending them to him and most of the time I do but I feel like he asked EVERY DAY. When we hang out more than likely we have sex. He says he really cares about me and doesn’t want me just for my body (I’ve asked lol) but what’s up with this?? Is he just a horndog? Btw I’m 19 he’s 25