Steal my underwear from the gym
Imagine this scenario. I have a long workout in the gym, until my underwear (already worn for as long as you want) is thoroughly soaked with sweat. I get changed and “accidentally” leave my underwear behind. You find this delicious item in the changing room while still wet and warm!
This is only available to lucky UK lads living in/near the southeast, or if you happen to be near here on holidays. It will work because my gym is 24 hours, and the changing rooms are private.
If you like the idea of discovering filthy, discarded, sweat-soaked underwear from the gym changing room, get in touch!