What on Earth is weird about it? He asked for clarification of which family members. I was already discussing that subject, why is me clarifying that I mean “not just with my parents” weird?
I think it’s the ‘just’ that comes off as weird. As if it should be obvious that it’s less awkward to watch a sex scene with one’s little sister than their parents.
If she’s five, then it obviously would be. I figured that’d go without saying.