Im a 35 year old male from South Africa. A girl of unknown status from a bar tried to perform oral on me two or three times. My penis couldn’t have been in her mouth for more than 5 seconds at a time. I pusher her away each time because I didn’t want to do oral without a condom but she kept trying. She also tried analingus but stopped her again. I later found out she’s a transgender woman (born male) and an escort. 

1. Given my penis was in her mouth for a few seconds, what is the chance of HIV or other STI’s? HIV is main concern and causing so much stress and anxiety I struggle to get through the day. 

2. Should I go on PEP given it’s only been a few hours since exposure?

3. Do I need testing? Main concern is HIV. 

4. Can I continue sex with my girlfriend?

I’ve heard you say receiving oral is basically zero risk but am just looking for reassurance whether I can move on with my life without worry? The threat of HIV gives me immense anxiety.