Que. Can a man run out of semen...like a gas tank gone empty? If so, how do the testicles refuel and do the testicles hurt when refuelling?
Ans. For the record, sperm is produced in the testicles, while semen is what is formed in the seminal vesicles when sperm mixes with other fluid. Considering that the testicles produce new sperm every minute -- or "refuel" as you so whimsically refer to it -- and if your testicles are not in pain at this exact moment, the answer to your last question would be "no". As for your first question: Frequent masturbation and - or sex will not make a man run out of sperm, but you may see a decline in the actual amount of semen that you ejaculate with each orgasm in that day.
