hi doc me and my girlfriend are tested HIV negative in november 2013 last year, i am a boy i take an oral sex to her i lick her vagina twice one is 30sec and the other is about 5-6mins i lick her vagina i insert my tongue into her vagina hole not much in different days but i didnt swallowed her cum or what you called lubricant in her vagina and after that i wash my mouth and brush my teeth and mouth as well as my tounge,, i am worried that i can catch a STI or STD ,, pls help me doc thank you,,