Soles of Silk - sour crawlers shoes

It was a hot day and Camille and Camille and I were ready to do the last set of the day. We were back at my car in the parking garage and I handed her the colorful shoes we had just bought for this colorful set.
"Before you put them on, put some of the gummy worms inside them," I told her.
She laughed and said ok. I knew we had a little bit of a walk to get back down to the dock and with it hot outside, I knew those worms were going to be moist! That was my intention.
When we got down to the benches I had Camille shoot some shots in her shoes and then pull them off. She enjoyed some of the worms from the bag, knowing full well I'd probably get the ones from her shoes. Of course, I did and they were indeed extra soft and flat from her feet smashing them on the walk and from her foot sweat. Would that make them "sweat & sour?"