Mosschops, I would make an appointment to discuss things with the priest.
As I understand it most priests would take the view that religious education happens in the home as well as in school, and therefore they could not unreasonably ask some questions about your religious beliefs and practice. They might, for example wonder whether you were interested in being received into the Catholic church yourself, via programmes like RCIA. If this isn't something you would want, then they might wonder what your motivations for requesting Catholic baptisms were.
Some priests are happy to baptise children without asking too many questions, but they are in a minority. If you are not a regular member of the parish most will want to try and understand where you are coming from wrt to religious faith and whether baptism is the most appropriate course of action at this point. Most churches require parents to attend a pre-baptism course. During this course and during the baptism itself you will be required to state that you do accept the fundamental beliefs of the Catholic church, so it's not something you would want to do without understanding and accepting the full implications.