Get a bike lock, one with a key, and 5 other keys (or similar metal objects). Wrap the 6 keys in opaque tape, so you can't see which one is which. Go outside and hide each key randomly in 6 different traffic signs. Now walk to a hidden place (not close to any of the traffic signs) and lock ALL your clothes to a tree with the bike lock (except shoes and stockings). You now have to make yourself cum once before looking for your key! Obviously use only clothes that can be locked with a bike lock to a tree, no string bikini in other words! Have fun..