She snorts, recognizing the trick. Despite her flippant comment she's had plenty of experience cleaning blood out of clothing. Though usually the answer ended up being less of a trick and more a lot of cold water.

"Just a little tight. Can't imagine why I'd be stressed somewhere like this." Which isn't exactly a no. It's not exactly a yes, either. Natasha hesitates to make herself that vulnerable. After a moment, she lets her hand drop back to the water, not even making a splash. "Hoping the water will loosen it up."