Snapchat is adding the ability to create custom stories limited to specific friends, or to direct contacts and their friends within a geofenced area. These new custom stories otherwise operate just like regular Snapchat Stories, but will disappear entirely if no one within the group adds any updates for 24 hours.

The custom Story feature is a good fit for special occasions, like birthdays or weddings, and can be set up either as a way to share across distances or as a means for getting people actually located in the same spot contributing to the same group Snap pool. Users can create up to three custom Stories of their own, but can participate in an unlimited number of those created by others.

Source: Snapchat now lets you create custom stories for groups of friends and family | TechCrunch