Just before I accepted my dog as my husband, when I was in my early 20s.
Rather than being a fan of bestiality, it was about accepting that my true nature is that of a bitch, and that male dogs are my mates.
After my husband was gone, I tried for years to love a human male, but in the end I realized that I couldn't love a human male, and then I started to see myself as a bitch.
That was in my early thirties
It's been years since then, but I still think I'm a bitch and I've never wavered.
I think now that this was my destiny.