I woke up naked in my nerdy college friend's bed after a stormy night

We were doing homework at my classmate's house, when at night a storm woke up that made it impossible for me to go home, I spent the night there and when I woke up my clothes came down because I was very restless and my short skirt woke up the nerdy guy's tough friend, it was enough to touch me a little for him to want to have sex with him immediately!