Just wanted to clarify the distinction between the lesbian analogy to girls who fuck dogs with regards to porn and real life. Lesbianism is largely co-related to an abundance of masculine traits within a females genetic component, similar to feminine ones in gay men, particularly from a cognitive and hormonal perspective. This is why Lesbians tend to be butch and masculine looking, same with gay guys looking naturally more feminine. The girls who do lesbian porn are more often than not just bisexual rather than full blown dykes. Research shows that women are more sexually fluid than men, it's not that hard to find women who are willing to experiment with another girl, but they're not actual Lesbians.
Dog fuckers, on the other hand, have no correlation with masculine traits in women. If anything sex with animals is more of a feminine type of sex because the components of the kink, humiliation, degradation, and submission are fetishes that correspond to typical female psycho-sexual frame found within other kinks the likes found in erotica literature like 50 shades of grey. Also, and I've mentioned this a handle full of times on this forum because I think it's important, both men and women who engage in bestiality both share a preference for male animals. Female animal targets are rarer for beastial activities.