Looking at the calories that can be possibly burnt from having sex, considering it a sport may not feel so out of place, as a matter of fact it's was proven by studies as one of the fastest mean of burning calories after swimming, rhw fact that it involves some adult concessions actually makes it a discreet sport if it has been considered one, oya definitely not going to be a sport for all and may not be done in the open too. Many may not want to consider it a sport because it was supposed to be something for pleasure but then some persons are now looking beyond the pleasure and if gambling on it will be profitable more than on other sports then why not, I will place a bet on it.