The distinction between organic and inorganic carbon compounds, while useful in organizing the vast subject of chemistry... is somewhat arbitrary. Organic chemistry is the science concerned with all aspects of organic compounds. Organic synthesis is the methodology of their preparation.
No, it is not possible to contract the typical STDs, such as syphilis, gonorrhea, chlamydia, hepatitis B, etc. from wearing someone else's dirty underwear. However crabs and scabies, may be spread in this fashion.
Best Answer: You can get many diseases from oral sex whether you swallow semen or not, even if the man doesn't ejaculate, because there is often an early small discharge of pre-ejaculate. Anytime body fluids are exposed, there is a risk, for syphilis, gonorrhea, chlamydia, hepatitis, HIV, HPV and herpes, to name a few.