thank you guys for cheering me up this morning with this thread!
get this , true story, real big one!
i dont know about sex on top of the mountain in winter(except Mountain of Venus, of course) but a very good friend of mine did it on an alpine plateau in summer time , at over 2000 meters high.( i dont know that in feet, your metering sistem is confusing for an european)
When the night came, he started to complain about terrible sun burns on his back, he couldnt sleep, so we asked him how come he made sun baths while some of us were away that day, cause it was rather cold even in mid - day!
The fact is that it was very sunny weather and it wouldnt take long to get sun burns at 2000 meters if you expose a nice totally white back skin in direct sun.
He felt no embarrasement in telling us, but this was subject to jokes way long after we returned to home, and his girlfriend was really embarrased . Her cheeks and forehead were rather red and she usually wore a basketball hat
The main jokes about the story were about the pretty long time they spent in that position, it may take about 25-30 mins to get burned in direct sun, so we called Vlad (that is his name) our "endurance champion".
there were other catches like Geronimo, or Redskin!