I want to eat my boyfriend out so bad

I'm 19F and my bf is 21M. We have been dating for two months now. He is my first bf, so I'm trying everything for the first time with him. Before him, even the idea of giving a blowjob was weird to me, but when we have sex, he makes me want to try things I never thought I would. Eating him out is one of them. He has the cutest ass ever. Whenever I see his ass and his pink hole, my mouth starts watering and I want to eat him out for hours! I have no idea how he would react to me wanting this, but I’ll try to ask him when I gather the courage 😭 I have no one to talk to about this, so I just wanted to get it off my chest.