Most of
transgender people don't like to talk anything about their body, if someone is comfortable with this topic, that's okay to talk about, but you'd better not to ask too much about this. Would you ask a cisgender people this kind of question? Of course no. If you ask a
transgender person too much about their body, they may feel they are treated as someone special. If you think about it in a different way, would you want someone to bring it up if you had a disability or if you wanted to hide something?