Thankyou in advance for taking the time to read and answer my question/s:
I am a female who last week enchanged in mutual masterbation with a male. I am concerned that precum or semen on his hand may have infected me with an STD/STI. I know his hand was exposed to air for a short time before he touched myself. I have also had no symptoms in the week following and discussed with him his history. He has had full std screening in recent times and said he has had one partner since. I am concerned about the risks to myself as I have had a screening before this encounter.
Thanking you again.