"No, you can not! You get STIs by having sex (vaginal, oral or anal) or by skin-to-skin touching--not from toilet seats."

"Pre-exposure prophylaxis (or PrEP) is a way for people who do not have HIV, but are at a very high risk of getting HIV, preventing HIV infections By taking a pill every day, someone exposed to HIV through sex, injection or exposure to infected blood, can keep the virus from establishing a permanent infection. When taken daily and correctly, PrEP is highly effective for preventing HIV infection. However, PrEP only protects against HIV infections and not all other STIs like gonorrhea, Chlamydia, or syphilis. PrEP also does not prevent unwanted pregnancy. Only Condoms do protect against HIV/AIDS, STIs,"

"Pulling out before the man ejaculates, known as the withdrawal method, is not a foolproof method for birth control. Some ejaculate (fluid that contains sperm) may be released before the man actually climaxes. In addition, some men may not have the willpower or be able to withdraw in time."