they was build in different factory but one day they meet and get marry and have a childrens. Including b737, A318, b767, A330, b777, A350, b787,A320, A321, A340, b757, A220, A319.

A380:hello! You seem. So small eh? Boeing 737:papa. Don't say that Boeing 747:honey. Be nice to our new guest A380:fine, i try next time B777: but papa i think we need more nice to him/her A380: hm yeah.