I've read some seriously hilarious essays on how characters can not every take a certain sexual position because of the strangest moments in canon.

Oh god, me too. It doesn't bother me if people want to use the fucking=dominant convention, but it's so boggling when people think it A) reflects reality and B) is The Only Way.

the three we've met

Which one haven't we met? Are you not counting us as having "met" James?