If she is having you will get it. If you have it you will give to her and to your wife. In the same way she will also be able to infect her husband, or andget infected by her husband if he is having relations with anyone with the disease. why all this complications??why you men and women cant be faithful to your wifes??its really bad. and then you worry about diseases???why give chance for it to occur?practice safe sex practices.

If you want to be free from worry and dangerous decease, you should prepare yourself to ignore such a contacts which will spoil not only yours but also many related to both families, sexual happiness from single is better happiness, please avoid extramarital contacts, try to come back and think someone is waiting for you at your home.