mammiferous

Mammalian.

The moment of ejaculation in mammiferous animals is accompanied by universal excitement of the whole body, a kind of slight convulsion, which terminates in a comatose or exstatic state.

Having mammae, or (humorous) breasts.

The mammiferous secretary slithered in, changed the spool and slithered out again, giving me a small, hygienic smile en route.