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.
You must make a self-control roll any time the GM feels you show an unreasonable degree of caution. If you fail, you must go ahead as though you were able to handle the situation!