Of course Jesus had bothers and sisters. He actually ate food and even took a leak from time to time. Be careful when you diefy an historical figure and expect them not to be human.
"And although there are pagan traditions involved in christianity, the pagan faith was left behind. We kept traditions only as a courtesy, to make it easier for them to convert."
I just picked myself off of the floor. That's a good one... really... (I'm still chuckling...)