I fucking , breeding ,making wife happy , less stress for hubby cause the bed part is on bull , so is the couple and bull are genuine and not fuck tup its can work very easy. Before any pregnancy all 3 should discuss about that possibility (we are grow ups ) so it can and should be easy , about divorce how you said a real bull never would do that ,(some players probably) a bull part in marriage is to make it stronger, and not stealing the wife. This is always my opinion , i do not know what every person thoughts are.