Cassie Multiple Jeans Messy in Her Bra!

Cassie has come in for an appraisal, she has disobeyed the contract she signed by wearing informal wear (jeans and leggings). I punish her for doing so in hopes she won't be doing it again. Cassie is supposed to bring formal wear to this, she doesn't. I'm not happy, I get her to take off her top and apply the mess to the jeans and leggings. We wash her down between each pair. There are 3 different jeans/ Leggings that get messy and I use Custard, Shaving Foam, Beans and Gunge.