Let me back up a little... if you’re worried about the taste, it does vary, so I would recommend eating something like pineapple. (There are a lot of foods that can affect it, which is a whole topic onto itself.)
I eat my cum all the time, though it’s true that a lot of the desire leaves me after I bust. My recommendation would be to keep going anyway. For me, the main thing was to get over the “ick factor”: I’d been so conditioned to think of cum as something gross, but once I’d eaten a load or two, it started feeling perfectly normal. Now I don’t shy away from cum at all, and I don’t hesitate to eat either my own or another guy’s.
Of course, if you’re eating another guy’s, you don’t need to worry about busting your own load and losing that desire! You can let him cum first, get the full enjoyment out of eating it, and then bust your own nut whenever you like....