My brother and I are just 2 days (and a few years) apart. Personal celebrations with family were combined when we were younger (and moved to separate ones on our own birthdays as we grew older), and parties with friends were held on separate days.
On the invitation I’d say it’s a combined birthday party and that presents aren’t required for both kids, just the one that they’re coming for (As in friends of Kid A get Kid A presents, and friends of Kid B get Kid B presents)
My brother and I are just 2 days (and a few years) apart. Personal celebrations with family were combined when we were younger (and moved to separate ones on our own birthdays as we grew older), and parties with friends were held on separate days.
On the invitation I’d say it’s a combined birthday party and that presents aren’t required for both kids, just the one that they’re coming for (As in friends of Kid A get Kid A presents, and friends of Kid B get Kid B presents)