Eating booty!! 👀

Okay ladies!! So my boyfriend of 3 1/2 years and I were on FaceTime yesterday and I will just flat out put it out there. He asked me if I would eat his ass! We were always both weirded out by ass eating, he did it to me once and I enjoyed it but now he said he wanted to try it, just to try something new. I don’t want us to have boring sex and he lose interest. Ya know? My thing is how do I even go about doing it? Lol (he’s currently out of town working and he comes back Sunday so I kinda need some advice beforehand lol)