Well first off let me just say that in my school none of the doors had windows on them. They were just solid, wooden doors so you could not see if there was anybody in the classroom or not unless you open the door. Well one day we were switching classes and I had forgotten one of my books in one of the classrooms but I was already in another class so I figured I would just wait until that class was over. So we began to switch classes and I tried to go into that other classroom to get my book that I needed. I tried to open the door but it was locked. I went to the principal, since me and him were pretty close, and got the master key for all the school doors locks. I unlocked the door and when I opened it my science teacher, Mrs. Heather, was in there pumping breast milk for her baby. I guess she had a certain time that she needed to do it or something so that's why she decided to do it in the classroom. But when I walked in there she was literally bent over facing the door putting her pump back in the bag but she had not put her breasts up yet. So when I walked in there she was bent over and they were all hanging down just dangling there. She raised up really quick and for about four or five, maybe even six, seconds she didn't cover herself up because I guess she was kind of in shock so I got a REALLY good look at them. Her boobs were WAY fucking bigger than I EVER EVEN IMAGINED that they would be because the way that she dressed didn't really show off how big they were. I had no idea they were that big. And her nipples were so fucking hard I guess from the pumping. Mrs. Heather was extremely, extremely tan with a very thin, but fit, body and physique and had legs that went up to the freaking ceiling. She really wasn't all that good-looking in the face, she kind of had like a brick face lol, but her body was beyond spectacular and me and pretty much every other guy in school wanted to see her naked so bad. I'm not a big fan of tan lines but she had tan lines on her breasts but her boobs looked so good that I didn't even give a damn about the tan lines lmao. It was one of the most amazing and most memorable experiences of my teenage years. I still think about her all the time. So just to finish up the story I didn't walk out. I turned around and apologized while she button her shirt back up and I said that I needed to get a book for my math class. So after she buttoned up I turned back around and grabbed my book off of my desk. When I turn back around to walk out she was looking at me and I kind of looked at her and we both just kind of laughed a little. I apologized again for walking in on her and she assured me that it was okay and what not. But yeah I jerked off like a fucking ape when I went home that day. It was great lol.