My rule of thumb when guessing Chrys' actions says that if something is objectively stupid, yet somehow requires an incredible amount of overthinking to do, then it becomes very likely. Also, she already sent MC into a room where she knew her mom was getting dressed because she thought it was funny and risk of getting MC instantly killed wasn't too high. Not to mention the development in the newest patch...
So while i'm not rooting for the scenario specifically, i don't think it can be ruled out just yet either. At the very least it would probably fit Chrys to organize getting caught in the act by her Mom... once she figures out how to quickly save the spontaneously combusting MC.