reek - give off smoke, fumes, warm vapour, steam, etc.; Marshes reeking in the sun give out, emit, give off - give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.; The ozone layer blocks some harmful rays which the sun emits
An average human ejaculate contains about 180 million sperm (66 million/ml), but some ejaculates contain as many as 400 million sperm. Both quantity and quality of the sperm are important determinants of fertility. A man is considered clinically infertile if his sperm concentration falls below 20 million/ml semen.
There is a very high prevalence of premature ejaculation, with approximately 35 to 40 percent of men treated for sexual problems mentioning the disorder as their primary concern. Anxiety, lack of experience, immaturity, and infrequency of sex are the most common causes of premature ejaculation.