What are we gonna do?

"Damnit, Karyn. Cast the spell again." "I can't, Jon. The book is still on your desk. We'll have to walk to your house." "Why don't you go. I'll wait here." I carefully sat down on her bed, making sure I didn't expose myself. "How can I get in? I don't have a key." "How did you get in this morning?" I asked her. "A spell. The book called it 'knock,'" she replied. I thought about it. I was pretty sure I could break into my own house without a problem, but what was I going to wear? "I can't go with you, I'm naked!" I stood up and gestured down at my towel, which promptly fell down. Blushing, I quickly stooped and picked it up, wrapping it back around me as I stood. Karyn giggled and said, "I know! You're going to wear my clothes." She pushed me into the bathroom, ripped away my towel, and closed the door. I heard her rummaging through her closet and her dresser drawers.