first it is mrsa (methicillin-resistant staph auerus). if the mrsa is on the skin or nasal mucous membrane and you have skin-to-skin contact or mouth to mouth contact it is theoretically possible to transmit this bacteria. being exposed does not mean you will automatically get it. unless he has mrsa lesions in the genital area there is really nothing that can be transmitted sexually.
a friend that has had merca in the past i had a double hip replacement can i be infected thru intercourse or kissing