[ oh man, how does he say this without sounding crazy? is there any way to not sound crazy asking? probably not. ]

Just remember, you did say I could ask, okay? No take-backs.

[ well, here goes nothing. there's a 'dramatic pause' as he takes a slow, deep breath, grateful he hadn't opted for video so shiro can't see how he's fidgeting. ]

So... um... what I wanted to ask is, uh... well... how did you know that you-- um... were, well, you know... into guys?

[ because he's having a not-so-crisis and shiro's the only one he trusts enough to ask ]