Honestly... I dont know what my man's cum tastes like. I cant remember if he has ever cum in my mouth. Not that I dont offer. He has AMAZING control, doesn't always cum every time we make love and when he does he always cums inside me.
Heck, he goes down on me more often than we have intercourse.
But, I bet if I really REALLY worked on him, I bet I could get him to cum in my mouth and get him to taste it. Would take some time and A LOT of work, but I would love the challenge.
*evil grin*