Make a self-control roll whenever you have more than the briefest contact with an appealing member of the sex you find attractive, at -5 if this person is Handsome/Beautiful, or at -10 if Very Handsome/Very Beautiful. If you fail, you must make a “pass” using whatever wiles and skills you can bring to bear.
Whenever you must sleep in an uncomfortable place, or whenever there is more than the slightest noise, you must make a HT roll in order to fall asleep. On a failure, you can try again after one hour, but you will suffer all the usual effects of one hour of missed sleep.