Martha's transformation was already far advanced, more than yours. You could say you were a man with some donkey elements, ears and hooves, on the contrary she could say she was a donkey, with some remaining elements of a woman. On the other hand she had a tail, long ears, two hooves formed on her feet, her nose and mouth had started to transform into a snout.
You remembered the pain in your teeth, you moved your tongue and hands to feel them....and they were different.....bigger, flatter, rough on the outside....
"Ahahahahah heeewaww" replied Martha "are you ready heeeaewww to eat heeaawww carrots ahhahhhhHEEAAW?".
Surprisingly, at her joke, a smile escaped you too, noticing how Martha was starting to have a little difficulty speaking. At least not without braying.
"I think heeawww" continued Martha "that my complete transformation isn't long heeaaawwwWWW." A light brown fuzz was actually starting to grow on her legs, even on her cheeks.
You looked down at your legs, observing the same thing: a light gray fuzz was rising from your ankles towards your knees. And then a pain hit your groin, an intense, strong pain that made you bend over. You immediately unzipped your pants, pulling your underwear down. Your cock was growing and it was different, a sheath surrounding it, your testicles huge and a different color, darker.
"ahhhhheeeawwwww" continued a satisfied Martha "my stallion.....".