Less clothes.

Removing her skirt would be too easy. It's barely a skirt anyway. Essentially, it's a glorified bit of cloth that covers her real bottoms, which is more of a black bikini bottom. For an entity of your power, anything is possible

So, you start to disappear more fabric. First, you remove the remainder of her top, disintegrating it away until she lacks no clothing at all above her navel. Raising both her hands now, she cups her breasts but slows her pace as to not trip once more.

"What the hell is going on with these clothes?"

Now, you aim for the V-shaped black bottom she wears beneath the skirt. Slowly, it starts to fade from existence, until the only thing covering her behind is the two short bits of orange fabric.

"No... No, no!" she shouts as she notices right away, as the chilling breeze wafts between her legs. "You're joking me!"

Her face turns beat red as one of her hands tugs down on the orange skirt, which couldn't be more than a few inches long. Whatever length, it's only just barely long enough to cover her fully revealed pussy. Now she stands panicked with only orange boots, long black stockings, and a tiny skirt to cover her entire body.

The rain comes to a stop, but her body still shines from being completely soaked by the prior storm. The wetness drips down her exposed body.