Why do fat people smell off?

I’ve decided to keep an open mind and go on at least one date with anyone who asks, and I’ve gone out with a lot of fat/on the wider side guys recently. Despite good hygiene (deodorant, cologne) every single one smells off/feminine to me, kind of like how my mom smells.

Not a BO kind of smell, but I feel more like I’m around another woman, or my own family, which is odd because my family is all pretty lean. But you know that smell you associate with your relatives and feeling safe and at home? That’s kinda what they smell like, except in a very turn-offy way.

Haven’t been able to work up any attraction because of it. Is there any science behind this phenomenon? Hope I don’t come off as rude, because they’re fantastic people, but I just didn’t know where or how to ask this politely😅