Greek Life: Biff Wakes Up Wearing New Clothing

Biff squirmed awake, loving the feel of his lacy underwear rubbing against his body. His eyes going wide, Biff pushed the covers off of him and looked down at himself. He was wearing a small pink T-shirt and a pair of lacy panties. But ... there wasn't anything different, right? Wasn't that what he went to bed in, the previous night? Why did he freak out just a moment ago? Getting out of bed, he stretched, then moved past his roommate Ted, not wanting to wake him up. But accidentally making a somewhat loud noise, Biff ended up waking Ted anyway. How did Ted react to Biff's change in clothing? Was he surprised by it, or did he think that Biff usually dressed this way?