Today you and dad, was talking about dad needing to get a new bike. You didn't think that was necessary since dad could just mom's old one. Dad asked if you didn't also need a new bike when you grow from the one you have now - but no - because:
Xander: "When I have a boy, whom turns 5, he can ride this bike"
Dad: "Who are you gonna have a boy with?"
Xander: "With Anna, but we need to get big first!"
Credits
SAS Designs - Father and son