I can totally buy it as a kink (not one of mine, but that puts it on a very, very short list so I'm not going to judge there). It's when it comes up, like you said, unwarned for in an unconnected fic, and especially when it's used to show just how clever and awesome Tosh is.

Owen, yes, totally would. It's possibly how he knew to make the 'part time shag' comment.

And appropriate icon is very appropriate. I do love that frond for modesty.