No, I woke up early

I opened my eyes. The room was dark and my roommates still asleep. Rolling over and trying to sleep some more would have been pointless, so I got up and grabbed some clothes, headed for our bathroom. A shower was all I needed to get fully awake now. As I left our room I noticed how quiet it was. Most others must have still been asleep, since it was still early.
'At least I can take a long shower without having to worry about taking too long', I figured.

As I approached the bathroom I heard a noise. Was someone in there? I sure as hell didn't expect anyone to be up this early.
I knocked a couple times, but didn't get an answer, so I tried to open the door. Not locked.
'Must have been my imagination', I though to myself as I opened the door and realized how wrong I was.

In the bathroom stood Nathalie. Fully naked, safe for the headphones in her ears. They were the reason she didn't notice my knocking. It looked like she was doing her make-up. And boy, she was a sight to remember. Her skin so smooth, you wouldn't believe. Her breasts round as the moon, hanging down just a little bit. It was probably cold in the room, since her nipples were standing to attention, but I didn't notice the temperature. My eyes followed her slim figure down her waist towards her firm ass. As she noticed me, she turned and I got a good view of her shaved pussy.

Finally time resumed running at normal speed and Nathalie covered up. "Out", she said quietly but in a serious tone.
I immediately turned around, left and closed the door, while issuing a quick "Sorry".

After I went back to my room I lay down on my bed and thought about what happened, trying to progress it. I just saw my seminar leader fully naked! A while later I could hear the bathroom door open and then a faint knock on my door.
'Oh god, prepare for the lecture of your life.' Then again, I didn't do anything wrong. Nathalie was the one who didn't lock the door.
I opened the door and sure enough it was Nathalie.
"Bathroom's free now. Oh and by the way: the lock is busted", she said coldly.
"Oh, okay. Thanks. Ehm....likem should we talk about that or....?"
"About what? Nothing happened." Her staring made me feel really uncomfortable.
I thought about making a joke like 'Hey, since I saw yours, wanna see mine?', but that seemed like a stupid idea so I simply nodded. She left.

About half an hour later I was done showering (yes, I jerked off to the mental image of naked Nathalie) and got back to my room. My roommates were finally up.
"Morning guys", I greeted them. They greeted back. "Hey, if you wanna use the bathroom, be aware, the lock is busted."
Then I left the room.