Marianne

Hi I just got 2 male budgies approx 1 1/2 years old and have always been together. I really wanted to have babies and many years ago I used to breed budgies and lovebirds but I had a huge avairy so they paired off together and did their thing but now just have large breeding cage but don't know if I should get 1 female or 2 to put in with them or ???? Would love some input!