Is what my mom did weird?

My family is pretty close. Like I’ll talk to my sister while she is showering type of close. Is that weird to any of y’all? I don’t think it’s that weird and I’m fine with it, but there is one think that I’ve been thinking about lately that is kind of weird. My mom showed my sister (23-24 then) a picture of her vagina a year or 2 ago I think. My sister didn’t seem to care and was fine. I guess because my mom wanted to know if she should be concerned about something. When I asked what they were talking about my mom showed me (13 then) the picture. I felt really grossed out. Like I got over it but now the memory is back to haunt me. And my mom talks about my boobs sometimes which also makes me uncomfortable. Part of it is because of dysphoria but I don’t like it in general. I don’t know if this is the right group to post this in, but I really need to know if I’m just overreacting or not.