I saw you. Saw when you snuck into your roommate's room and violated her privacy. Watched through the window as you opened her panty drawer and looked around to make sure nobody was there. Like a criminal. You picked out the lacey red ones...you would. Stuffed them in your pocket and retreated to your bedroom. I went around and looked in your window as you took the frilly underpants out of your pocket and put them on your face, sniffing.
But if I thought that was the worst of your offenses, I was in for a surprise. Because then I watched in horror as you took off your pants and underwear to expose yourself rock hard. I watched, slightly amused and fully disgusted, while you slipped her panties over your legs and hitched them up onto your hips. Your dick was showing through her bright red undergarment. Pervert!
You started to touch yourself, slowly, methodically, through the silky underwear. It was just then that I took out my phone and clicked on the "Camera" option...
And now you must pay for your crimes ;)