Only one dream that I remember, but it was kind of a tipping point. First, there was certain day when I became aware that I was sexually attracted to dogs. But for about the next eight years, I wouldn't say I was really conflicted about it, but it was just a thing that didn't seem like it could go anywhere. Then one night, apropros of nothing, I dreamed I was getting it on with a male Irish Wolfhound. Well, it's a dream, dream big I guess.
After that I couldn't put the thoughts away, pretty soon found Beast Forum, yadda yadda, the rest is history.