You’re really implying a considerable age difference here though, and that’s not really implied in either the original fake story or the hypothetical posed here. It’s not like dating an old friend of their parents, it’s more like dating their childhood best friend.
I mean, if the siblings are similar in age then yeah, I could see it being like a childhood best friend, but even a difference of, say, 4 years would be great enough that grooming could very well be in play.
You’re really implying a considerable age difference here though, and that’s not really implied in either the original fake story or the hypothetical posed here. It’s not like dating an old friend of their parents, it’s more like dating their childhood best friend.
I mean, if the siblings are similar in age then yeah, I could see it being like a childhood best friend, but even a difference of, say, 4 years would be great enough that grooming could very well be in play.