Listen to each child
Ask separately about friends, activities and the moment that would make it feel like a birthday. Compare wishes afterwards so the quieter child is heard too. Choose one shared main idea instead of putting two full programmes back to back.
Make one guest list
Combine names and count shared friends once. Discuss guests who know only one birthday child, and keep the total suitable for the venue and supervision. Equal numbers of personal guests are an option, not a requirement. Give a booked provider the combined total.
Assign preparation tasks
Name one responsible person for each item: invitations, venue, activity, food, arrival and clearing up. Choose one contact for the provider, collecting wishes from both families. This avoids conflicting start times or instructions.
Agree on costs first
List what you want to book and buy, then decide how to divide it. Keep amounts and confirmations together. Do not add extras that change the shared budget without discussing them.
Give both children a personal moment
Ask whether they want to sing together, choose a favourite song each or have separate little moments. Equal attention does not require identical treatment. One child might enjoy the spotlight while the other prefers a friend beside them.
Discuss presents and mention the arrangement on invitations if needed. Avoid comparisons between gifts. Two labelled places can keep them organised for opening later.
Use one invitation
[Name] and [name] are celebrating together! Join us on [date], from [start] to [finish], at [address]. We will [activity]. Please reply by [date] to [contact]. Food, drop-off and collection: [details].
Use one final version. The same contact should send any complete update to all guests.
A DiscoShow for both
Tell Kinderdisco.nl that there are two birthday children, with both ages and the total guest number. Read how the show works and discuss favourite music and individual attention beforehand. The party guides offer age-specific inspiration for one shared celebration.
