Hmmm... now see I am on the other end of the boat on this one.... My boyfriend has two adult sister normal ball pythons... now I currently have two male checkered garters, one female checkered garter, one male normal ball python and will be picking up a female spider ball python this weekend... and he thinks i am a bit crazy for having so many snakes... and to think that we are talking about moving in together soon which would brign the grand total up to seven snakes and three humans in one place... yeah, and I am getting the spider female to breed with my normal male in a few years when they are old enough... they are both 09 babies...
Now the answer to your question.. ... are you all willing to compromise on this? Do you live together? are you going to live together? Are you prepared of the aspect of having quite a few more snakes at once when you breed? I thnik that in the end... only you can make that decision.