maybe you just got a major rager at the sight of another man's cock. I have the same reaction when I see woman's arses & tits.
I told you already seconds before he showed me his cock, i got horny and a boner too. Again, before, not after. So he put the drugs in the air to make both of us horny and have hard-ons.
You'd notice a powder in the air. And I don't think if you take Viagra, you immediately get a boner either. At least I don't think so because it was marketed originally to be a heart medication. Can't be having people with heart problems walking around public with a huge hard on
like i said, it might be viagra or something similar. maybe it invisible powder then. again, ask the guy that put that in the air or ask the person or people that make that drug.