.... a sexy girl walks out. She wasn't even trying to cover her body with the towel. She seemed to be trying to seduce you.
"Hey lover boy, care to come with me to my bedroom?"
"My bedroom"? No, the shampoo couldn't have. You take a look in the bathroom. Your roommate's boxers where there, but there was no sign of him at all. Did the shampoo turn your roommate into a girl?