Originally Posted by
Kotonoha
I always just say "top" and "bottom" :V
Though actually, there's something a bit annoying in fanfiction, the idea some shippers have that all male/male pairings need a top and bottom, and one has to be the MANLY MAN while the other one is the delicate flower. Plus silly shit like the "height rule" that the taller one has to be the top (I remember once someone's reaction upon hearing that Shinji and Shirou are the same height was "then by yaoi logic, they could never have sex!")