As a bi female and upon reading the OP, I'm about 89% certain that you were very curious.

Next time you're in a public restroom with a (probably gay) guy for 30 minutes, just make sure you use protection. No one is judging you. It's 2014, so no need to downplay the situation for what it really was: A dope fiend propositioning a very open and curious stranger... not a drunk, naive one that just so happened to have time to shoot the breeze in a grocery store restroom.