How about business wear?
Oftentimes clothing for me relates to the probability of getting messy.

A business woman in her expensive outfit usually would have a very low probability of getting wet or messy. Therefore the kink is especially high if it does happen.

Formal office attire, such as skirt suits, and smart business wear, absolutely hits the spot.

I know exactly what you mean, it is the fact that it is there to represent authority & power, probably cost a fortune to buy, and will almost certainly dry clean only.

For all of the points, it is not supposed to get wet, definitely not to swim in, nowhere near a bath of slime, and seriously not made to be covered in pies, huge increase in the kink when it does, especially when you get a glimpse of her bra under her shirt.

I wholeheartedly agree with all of the above comments from both of you - therefore they are absolutely correct

So often a model will be in great attire - and shoes and someone will comment 'maybe do it in a bikini, barefoot, next time?'

The destruction and debasement of feminine and sartorial perfection before all else.

I'll ad one more shot for the imagination

That is certainly one gorgeous business suit A kilo of black grease applied all over it would be the icing on the cake. How would others 'improve' it?

I'm quite fond of soaking my office outfits when the mood strikes me!

Though it's rare that I wear a suit, I do wear nice skirts and dresses most of the time with heels or boots. I would like to increase my number of tailored suits... Blazers are warm and snug against your body and chest when wet, much like a thick coat which is essential with the weather at the moment!

Absolutely. I much prefer the business look. Imagine a sexy smart dress or skirt suit with blouse coupled with stilettos and tights. Thats much more imaginative than just a bikini. You could have all kind of scenarios...
Female executive sent to inspect a construction site, and finds it very muddy...
Or sent to a pie factory, with obvious results...
Mean boss of confectionary company gets taste of her own product..
I could go on!

Business clothes are the best clothes for bathing!

I know how good you looked as a messy secretary

Oh and it wouldn't be me if she had left the set clean ...
Full set at https://www.wetandmessyphotography.com/downloads/the-lady-in-white/

I agree 100% - business attire is the perfect thing for a pie in the face or wetlook victim to wear! The proper nature of it mixed with the authority juxtaposes perfectly with the playful humiliaiton factor.

I of course wear it because I used to work in an office, and therefore when I got muddy or messy going home I was in my office attire!

We have the ladies dress up frequently before their mud match interviews but for the life of me, I can never understand why they can never get along long enough to stay that way.

Certainly my favourite WAM wear, It's the ultimate outfit you shouldn't get messy or bath in. I work in an office so i have i have good supply of suits,shirts and ties and have had many sessions with well dressed ladies.