I have been in a monogamous relationship with my partner
for four years. Because we were both tested
for common STDs and HIV, we agreed that we would make our relationship exclusive so that we could have sex without condoms.
About four weeks ago, I was dragged to a club with a few friends of mine and drank quite a bit more than I really intended. I will not bore you with further exposition: I ended up giving oral sex to another male whose status was unknown to me.