One of my favourite memories from school is of a really cute English teacher I had who was probably in her late 20s and who used to teach whilst sat on her desk. She often wore skirts that were above the knee (though not really short), and although she always had fairly thick tights on, it wasn't uncommon for those of us near the front of class to get a quick flash of knickers from time-to-time.
Sadly one day the guy in the front desk (I was in row 2), who was a bit of an idiot, was getting a lecture from her for something-or-other and, in the middle of it, just said "I can see right up your skirt". She was pretty shocked, and just sat in silence for what felt like ages but was probably only 10 seconds or so, but then pulled herself together and sent him out. She actually handled it very well, but that was the end of her sitting up on the desk. That guy really was an idiot.
She was by far the most attractive teacher I ever had. I also remember finding an advert for underwear with a model who looked uncannily like her which I kept for years. Wish I still had it, if I'm honest
