So is anyone into having someone (who your regularly intimate with i.e. a BF or husband) come up to you them randomly and having sex or the reverse are you instigator? Just something curious cause I personally wouldn't rule out just randomly coming behind a girl I was with and pulling her panties down and licking her or a girl who would come up to me and start kissing me or something.
i've done that to a few guys, and they've never seemed to mind.
if a guy were to do it to me (which has happened), i'm usually initially put off by the attempt, but if he's determined, i quickly become convinced (and a kinda turned on by it). there have been a couple of times, though, when the timing just isn't right, and i've rejected him. this has led to hurt feelings and some resentment. so if you're going to do it, know her (and establish trust earlier) and what's going on at that exact moment well enough to decide if she'd be into it. don't do it just because you're horny and want to fuck. ask her if it's something she might be into. if she responds positively, then wait for the right opportunity. if she says it's not something that's too exciting for her, then don't do it under any circumstances! and respect her if she refuses your advances, even if she earlier said she'd be into it.
If you spend much of your time at home either naked or at least going commando, there is significant possibility of being slipped a length every time you bend over. It's OK, although sometimes a little inconvenient if, for instance, you're trying to find something at the bottom of a chest freezer (as happened not so long ago!).