I have to agree with TJ....being 42, i have cum thousands of times,and i can say i have never characterized my cum as smelling "overwhelmingly awful."

I don't know how old you are or how long you have been ejaculating, what your parents taught you about sex (both masturbation and premarital sex) but there's something not right - and i doubt it's your semen.

Like TJ said, you might want to talk to your doctor about it because there may be some sort of infection of either your testicles or your prostate gland. Howver, your posting makes it sound like it's ALWAYS smelled that way.

And, as TJ said, the smell, texture and taste of semen can vary based on waht you consume (food, drink, etc).

Once u rule out a medical condition, i'd look a little deeper.

Now, your question about "clean up" after ejaculating on your girlfriend has me really scratching my head. The clean up would be no different then when you masturbate, except it may be HER you're cleaning up! Quite frankly, you should ask HER if she has a preference on where she wants u to cum!

Hope to hear back from you on this!

it should smell but not too bad, it's just a strong sent, maybe you need to go see a doctor, just to be safe. It could be something you are eating too, but who knows.
About the taste, well, i don't know how related it is to the smell, but it is related to what u eat. If you eat too much red meat it will taste bad, but if you eat sweet fruits and vegetables, it will taste much better (This realy works!).