I will tell you here no risk. But if you want more info please post in that forum.
Ton find out about HIV do I need to post to that forum?
Oral sex is the risk...low but possible.
Gonorrhea, NGU, syphilis and herpes. If you don't have discharge then probably forget about gonorrhea and NGU of the penis, but have an oral swab for gonorrhea. Herpes and syphilis is very low risk and done with a blood test.