"Well," says Kristen, "I wish you would have told me first."
"Why?" you ask, then mentally kick yourself. But her reply is not what you fear.
"Well, I would have given you a better show. You know, I just threw on some stuff quick, nothing that exciting. We could have had a lot more fun than that." Then she smiles. "Still could, you know."
You swallow hard. This is...not exactly what you expected. But it's definitely in the uppermost range of what you were hoping for. Kristen appears to be turning over the possibilities, too.
You wonder how much more information you should divulge to her. If she enjoys this, maybe you could arrange to be her panties consensually next time. For the moment, though, she has the floor.
"Now, I really should go to class. What do do with you while I'm there, though? Hmmm." Then she smiles a wicked smile.