Which one do you love more?

Father: Which one do you love more , me or Mommy?
Akpos: I love you both.
Father: Very Well , lets say I went to Japan and Mommy went to France which country will you go to?
Akpos: Japan.
Father: See, that you love Mommy more than me?
Akpos: No, I just want to visit Japan.
Father: Very well , lets say I went to Japan and Mommy went to France which country will you go to?
Akpos: France.
Father: See?
Son: No its just because I have already visited Japan.