Vaginal-anal enemas are kind of multi-functional, or unisex, or all-purpose... you get the idea. There are various ways of getting it up yours, or up hers, even up his! The boundaries are kind of hazy: there's no clear distinction between unisex enema equipment and vaginal-anal enemas, for example. So there are lots of enematic (even enigmatic) discoveries to be made by inquiring minds!