Wilma and Fred Flintstone
There's a fetish for every eye and taste but bigger guys with smaller women is pretty much the norm in the US so I don't know how exotic of a fetish it is. I remember seeing on talk shows years ago very thin women that adored very large guys. It always struck me as normal though, not really anything out of the ordinary because that's the majority of what I witnessed in every day life.
Napolean is very thin but he'd make me wet even if he was 400lbs!
Things like that never mattered to me so I guess I'm not an expert in this field lol.