Yesterday a sex worker performed oral sex on my penis for a few minutes. After she applied lube and performed a “camel slide” rubbing her vagina up and down the shaft and top of my penis for less than a minute. There was no penetration during this. 

Welcome to our Forum and thanks for your confidence in our service.  Thanks as well for your questions.  the encounter you describe did not put you at meaningful risk for STIs.  Most commercial sex workers do not have STIs and when they do, even most unprotected exposures do not lead to infection.  Further, penetration is required for transmission. Thus the frottage ("camel slide") you describe was a no risk event.  Similarly, condom-protected sex is safe sex and as long as the condom was worn throughout the encounter and did not break, you are not at risk for STIs.  That the condom may have slipped down slightly on the shaft of your penis does not change this.  Thus I would not worry about STIs from the exposure you describe and nothing you have describe suggests a need to avoid unprotected sex with your regular partner.  EWH---

Thanks so much for your response. Your comment(s) regarding sex workers, STI’s, and exposure to infection took me by surprise really. Find that all very interesting, and am curious if you could briefly elaborate on this?

I'm not sure what elaboration you know.  CSWs tend to be aware that the nature of their work may put them at risk and for that reason tend to be better about regular check-ups than persons who may have more partners casually.  ---

Certainly learned a lot from what you have told me. 

Thanks for your thanks. I’m glad I could be helpful. Congratulations on your own personal commitment to safe sex.  I really think you are OK and would nor be concerned.  Continue With condom protected safe sex for all penetrative sexual encounters and you’ll be fine. Take care. EWH---