What are the chances ( if any) for a man to get an STD like syphilis , herpes ,HPV or HIV in a sexual encounter with a woman under the following scenarios : 1. Oral sex while wearing a condom 2. Licking all over the body except the genital or anal area. And if she does the same would she need dental dams or just licking is safe 3.kissing her lips without tongue. 4. If things get a bit hot and I lightly bite her ass ( no bleeding ) is that safe 5. Licking on my testicles ( does she require to wear a dental dam?) I know these are very specific but there is a lot of material online but doesn't answer these specific questions of individuals trying to practice safe sex. Also if there is a risk can it be prevented by having some pill immediately before or after. And a different question - for a 32 year old male does it make sense to take the HPV and hbv vaccine ? And cost , specific places in Delhi to get it done Thanks for your time.