Circumcision: Asking advice on how to talk to my parents that they shouldn’t talk about private ma

Assalamu alaikum Imam, I hope this message finds you well. I am reaching out for some guidance on a situation I am facing regarding my upcoming marriage, insha'Allah, this December. For context, I was raised in Canada by Indonesian parents, and my fiancé, who recently converted to Islam in July, is not from a Muslim background. Recently, my mother brought up the topic of my fiancé getting circumcised, which made me uncomfortable. I politely asked her to drop the topic, as I didn’t think it was something my parents should be involved in. However, my father took it a step further and directly asked my fiancé to get circumcised before the wedding. This has left me feeling quite shocked and uncomfortable, as I believe discussions about this matter are very personal, and I feel it’s inappropriate for my parents to be involved in decisions regarding my fiancé’s body. I grew up without any brothers, so this topic was never really part of my upbringing, and I don’t have much understanding of how to approach it within our faith. I would appreciate your advice on how I should handle this situation with respect to my fiance (and myself) as we are both really distraught by the fact that they talked about this. How should I approach this delicate issue? My fiancé is aware on the rules about getting circumcised for male in Islam. I’m asking advice on how should I talk to my parents that this is not their decision to make or even talk about. JazakAllah Khair for your guidance. Best regards, NJ