There's a Catullus poem that starts "pedicabo ego vos et irrumabo vos" ("I will fuck your asses and I will fuck your mouths" might be a good translation) and not only is it so violently sexual I feel dirty just reading it, it all goes to prove that Catullus is a manly man, because when he has sex with other men, they're the ones on their knees.

Other paradigms of sexual identity are so interesting, even when they're still basically awful.