I read a story here with a wonderful idea, but I'll be damned if I can remember the name of it. Anyway, put her on panty patrol. Give her a certain number of days/weeks that she must go commando at all times, and make sure to "check" her frequently to make sure she's not cheating, i.e. random mornings before work or in the evenings after work as soon as she gets home or while doing chores. Let's see...um...you could have her masturbate to the edge of orgasm every time she goes to the bathroom, whether at work or at home, but not actually let her until....whenever. Oooo....since the sex has been to just give her an orgasm....maybe when it slows down a bit, you could have her suck you off or jerk you off so it will mostly be just to give YOU an orgasm. *weg*