Family photo shoot- sister wants to bring very new man

[MumToTwo2022]

I have booked a photographer to take family photos for our mum as this is something she has said many times that she would love to have.

Myself, my brother and my sister are paying for this between the three of us as a gift from us all.

The plan is to have photos of the 3 of our families individually, we all have children.
Then have some of us 3 siblings and some of all Mum's grandchildren together as well as some of the lot of us-
My brother, his wife and their 3 children.
Myself, my partner of 11 years and our 2 children.
My sister and her 2 children.

The bit I'm now questioning is that my sister has now told me that she plans to bring a man she's started seeing along and wants him to be in the photos, including the group photos of all 3 families.
This was not the plan when I booked the photographer.

For background-
My sister has been 'seeing' this man for about 6/8 weeks.
They aren't officially in a relationship as yet.
My mum has met this man once.

AIBU to think that he shouldn't be in the family photos that we are having done for my Mum?

Yup. Good example @TiredButDancing
This is the relationship equivalent of 1, 2, miss a few, 99, 100.
Skipping the very important, getting to know each other, and, building trust (if trust is earned) stages.
⛳⛳⛳

The only people making a mug out of themselves are those expressing such sexist attitudes.

So ridiculous. It’s just some photographs, and the man himself is happy to participate

Any progress @MumToTwo2022 ?

That's really annoying, YANBU. Could you compromise and say he could be in a couple of shots then just have rest as only family? How much does she actually care?

I think you have bigger things to worry about if a man your sister only met 6 weeks ago wants to meet the family and be in pics. Very odd.

Thinking it is crap that a random person who isn't even in a stable relationship with a family member wants to be in the family portrait is sexist how?
What's it got to do with the sex of the person? Male or female, the latest squeeze doesn't belong there. He/she isn't family.
Those portraits aren't cheap and who wants a framed picture on the wall with someone in it whose name you can barely remember, cos this person might not be around in another 6 weeks time.
Do you usually insert yourself into personal areas of people's lives without any indication you're welcome?