Guardog

G'day. I'm new to the World of Budgies. I got six two weeks ago. I have revamped an old Cocky cage and inserted three Boxes. Two looked quite happy with each other and I think they may have had a little liaison. George (girl) has been interested in one of the boxes. She has pecked at the opening and gone halfway in. Is it the case I may be a Grand Pappy???