Husband has sexual activity with other woman with the consent of wife
It does not break the third precept if the husband has the wife's willful(not forced) consent. It's somewhat similar to kings having more than one queen. 

Having said that, there is no such thing as a "biological need" regarding sexual pleasures. Water is a biological need, air is a biological need, food is a biological need as you cannot survive without them. You do not need sex to live.