I find that one of the advantages of running off-road, is the opportunity to discover isolated spots for outdoors nookie.
The best spots are not knee-high cornfields, (you end up with a very itchy back if you're not the one on top).
Again, it tends to be more of a summer activity for obvious reasons.
Then you play the second part of the game i.e. sneaking home!
Hint - take old clothes with you, preferably with velcro fastenings.