She goes commando.

As her jean-shorts fall to the floor, your eyes travel down to where they come to rest "Damn, staying comfortable?" when you don't see anything in between them. "Yeshhh. I don'd evehnn havve any pannies." she says a second or two later, causing your cock to strain within your own denim as you think back to those times you've seen her around the building in one of her many different skirts. You remove your jeans, ending the imprisonment of your unbelievably erect manhood.