Yeah it is I just realized it, sorry if I broke a rule there
So upon reading the katakana, "boy-kun" and "girl-chan", looks like the one on the left is supposed to be a boy, so either they meant for each character to be cross-dressing, or they meant it to be genderbender style, which is actually hard for me to tell since they look so similar, except for the obvious hair style, hair color and short length. Either way it's cool.
Protip: Make sure tumblr image links/filenames end in 1280, not 500, before you save them.
I'm thinking about make more strips like this, starting a boy/boy pairing...