Re: quick question
Well, the stuff you ejaculate has a lot of other fluids in it, other than sperm. So, it can be clear, milky white or whitish yellow. It is not correct that yellow ejaculate indicates an STD (I think he was thinking of pus, which is another story!).
Typically, whatever color it is consistently is fine. Red or reddish brown could be a sign of trouble, though (blood).