this week I performed unprotected oral sex to girl whom I dont know and she performed me protected oral sex. My oral sex last 2 -3 seconds. Firsly I touched his anus with my tongue just one time than his vajina one or 2 time. There was no ejaculation during this period. What is the risk of getting STDs(HIV and other diseases) from this sex I mentioned above? Could you write the odds numerically please?