I'm here to tell you as a straight male, for whatever that's worth!, I absolutely LOVE the taste of my cum. I can and will often eat it from my hand or out of or off of my girlfriend. And don't get me wrong I like the taste of male cum so much I'll even eat another man's cum out of or off of a woman. It's just hot and taste good to me!!!
Now for the science part of the show. Some will say that for a man to eat another man's cum from a woman it is in an effort to remove his chances of creation. Ok...sounds good...got it! Wild Kingdom and all shows that a lion will rush in and kill the young of the other lion to make his chances better...got that too! There are several other "thoughts" on why guys like the taste of cum but here is one I don't think anyone thought of...MAYBE I JUST FUCKING LIKE IT!!! How about that!?!?!
I've had MMF sex and casual bumping and "friendly fire" are, at least for me, a turn on and not at all GAY! I really don't think you are anything other than what you THINK and KNOW you are...as an example I think I'm a really hot totally amazingly well hung porn star that EVERYONE wants and desires! Truth is tho I'm just a regular guy with a great cock and really horny all the time!