Bess is a beautiful, fine example of brahmin cattle, though not particularly lucky. She ran into trouble and got a lame leg while trudging through Modoc.
Help Bess the Brahmin: Using Doctor on her leg allows the Chosen One to heal Bess' leg (25% or more required). She will then follow the Chosen One around Modoc.
Other interactions
The Chosen One can sell Bess to Grisham and receive 100 meat jerky after 24 hours (placed in the crate outside the slaughterhouse). Oh, this costs -5 Karma.
If sold, the Chosen One can release her and fellow brahmin for +10 karma and a drop in Modoc reputation. They will later encounter her dead in a random encounter outside Modoc.