delegating sub domains with dynamic DNS

[forester404]

Hello.
I am new to DNS, And my questions is actually related more to the
client side, but I couldn't find  a
more suitable group (please direct  me if you know such)
I am writing an application that uses Dynamic DNS client (dns java)
in order to add and remove Recored on name server for a giver domain.
adding and removing ARecords and SRVRecoreds works ok,
but I would also like to add sub domains to the given domain
dynamically, using Dynamic DNS. Is that at all possible ?
My current understating is that it isn't, since one can only
send Dynamic DNS updates to a master name server, but, in order
for a name server to set as a master for the new sub domain, it must
have an SOA record that defines its authority, so it seems like a
cyclic dependency...
Am I correct ?
when I try to send an update to my local Bind name server,
I receive 'not authoritative for update zone' error.
Any ideas how to work around this ?
Thanks !