I never make first moves. Does this make me innocent? Well, I feel it does, if the status wasn't divulged to me previously. The most extreme case of this was someone that I THOUGHT I knew well, slipped "afterwards" and said, "Man, I really needed this."
I asked, "Why's that?"
"Well, you know... The wife's so hormonal with this pregnancy, I never know WHAT mood she's gonna be in, and we're never in synch. So, it's been forever."
This being the first I'd heard of any spouse, tried to remain very casual, when I said, "Wow. Pregnant?"
"Oh, um, yeah. Can you believe it? Our third."
On the other extreme, there's a couple, where I'm friends with both him and her, and accordingly, knew how sexless they were. After a long series of events, over several months, it finally culminated with him saying, "So, uh, well, I know you've tried messing around with guys a few times..."
"OK, yeah, you know I have. What's the question?"
"No, um, I mean... How'd that work? Like, how'd you know it was OK to try something?"
I ended up "helping" him out a little bit that night, nothing too involved, and the next morning had breakfast with HER, as though nothing happened (the advantage/disadvantage of growing up in a very compartmentalized childhood, I guess).