Fiancés Penis Smell?

So i don't know how to explain but my fiancés penis smells...it makes me gag🤢 its not a cheesy smell its kinda like old sweat maybe? I dont even know

The thing is he showers everyday and i know he washes it cause I've been with him many many times but it still has a smell! I don't know what to do? I barely give oral because of this reason🙈 i also think his cum smells bad aswell to the point i gag just sitting on the toilet if he's cummed inside of me.

Any ways to improve this? I don't wanna tell him like your dick smells but i don't really wanna have sex because of the after smells etc.

Thanks ladies😭