I hope by "everytime I see her body" you mean clothed...if not; there's your problem right there...stop seeing her without clothes. If you mean, just every time you see her...change your focus, think about your kids (if applicable), think about riding a bike; think back to if you turned the coffee pot off this morning, OR BETTER YET just stop looking at her. If you can't control yourself around this woman, than stop being around her. Sometimes it's tough, but if you truly want to do the right thing, then sometimes it means making these kinds of decisions.