You should have figured out the answer from this advice that lists the only way to get hiv. Reread it next time you need advice about hiv.
You have previously been advised of the risks for HIV. The only risks for HIV in adults are:
1) Having unprotected anal or vaginal sex, or
2) sharing intravenous needles with IV drug users.
"STDs" stands for sexually-transmitted diseases. Unless you also had sex with your friend while urinating, you didn't have a risk for STDs at all.