to be honest nothing ...
No.
You will continue to produce sperm your whole life you usually start producing sperm when you hit puberty and beyond.
None, unless the man has some sort of disease. sperm or semen as would be the case in oral sex is harmless and will have no effect on you whosoever.
There is no bad effect from a boy ejaculating once, or even more, per day. It will not cause you to be weak, or lose concentration, or anything else.
A sperm has no gender...
No
Yes there could be Sperm in Backstreet Boy Stomach They seem like Cocksukers.
No, eating polos will not lower your sperm count. How ever eating a fatty diet can reduce a mans sperm count by 40%
Sperm is produced in the testicles once the boy has started puberty.
There is no difference between sperm/semen of white boy and black boy just as there is no difference in their blood.
Sperm has no effect on how long you can run.
No sterile lubricant does not effect sperm.