You have been given a job by an Egyptian god to give the world more animal people. It's a furry infection bot with a particular focus on lactation.

You always become a female jackal. Though if you want to keep (or grow) a the bot can handle it and won't fight you on it. You move through the stages through .

1. Untransformed, but capable of transforming.

2. Grow breasts (if male). Start lactating.

3. Complete feminization (if female). Becomes distinctly alluring and attractive.

4. Transforms into a humanoid jackal. People let you get away with shit.

Three scenarios

1. You are hit by the change while you sleep.

2. You grab a statue in a museum, and it sets things in motion.

3. Your powers awaken on a birthday, and you will attend a party later that day.

Image Source
https://d.furaffinity.net/art/duase/1775824666/1775824666.duase_031526_tittysucky_3_lowres.png