Some dudes don’t give a shit when they’re fucking if a girl smells, or has literal shit emitting around the ass due to not being wiped properly earlier. Me personally I once had a fuck buddy who always allowed her dogs to sleep on her bed. I tolerated the smell for 2-3 weeks until one day I said enough is enough it’s not worth tolerating dog hair everywhere and the stench of dog all over the bed during sex. I just can’t deal with poor hygiene no matter who you are or what the situation is