Kyon always seems way out of character. He doesn't strike me as the one to be 100% serious, and doesn't make quips even if it seems like he normally would. At the very least I see them both being either more playful or more disturbed by the thought of it.
Also, it just doesn't seem like something that could happen easily. It'd take a bit of buildup for it to feel right, I think. I don't get this kind of feeling with most doujins, just Haruhi ones.