Both of these activities are considered "low risk" Should I consider getting tested for STI's, or do you think its unnecessary? I apologize if I am coming off as being completely ignorant, this is just the first time for me so I'm a little stressed.

A while back, I was dry-humping a guy who's sexual background I do not know. I had my leggings and underwear on, while he was naked. He was definitely rubbing his penis on my vaginal area, but I am sure he did not ejaculate (not sure about pre-cum though). I did touch his penis with my hand. Also, t...