in Laos culture, before a Lao wedding takes place, (after the proposal) a traditional procession call Sou Khor is arranged (an envoy of the boy sent to the girl to ask if her parents will allow the marriage). If her parents agree to let their daughter to marry the boy, a Kha Dong (bride-price) is negotiated as well as who pays for what at the wedding. This is usually the groom, but today often both parties share the expenses. The Sou Khor session takes place several days or even months before the wedding. Visit Laos Wedding page for more info.
Once married, the couple lives with the parents of the bride until after the marriage of the next daughter (if any) or in some cases they move out earlier but the earliest is seven days after their wedding.