How does cum taste?

Hey ladies, so I was wondering how does cum taste? I’ve just started giving my boyfriend blow jobs and since the day I started he’s been wanting to cum in my mouth only because he doesn’t want me to stop going but he also wanted to know how it tasted as well and I’m kinda curious myself, yesterday I gave him one And he said he almost didn’t tell me he was close but he told me anyways because he knew I’d be mad and don’t want it in my mouth.