I edited the original post to include this, but I there was one more thing about M/M romances that I have noticed that I find rather bemusing:

Apparently in M/M romances, there are no tops and there are no bottoms.
Everyone is a switch. Cute in concept, not particularly likely from my
experience. There’s probably some interesting psychology behind this –
authors introducing a notion of equality between partners, perhaps,
although that gets into the problematic question of whether either role
is a sign of dominance or submission. Or maybe they just like to see
everyone having fun in as many ways as possible!

Also posted on Tumblr at: http://ift.tt/1YRsOaI