Who wears the pants?

recently I had a comment on one of my Facebook pictures that I still don't quite understand.

(It's some form of a joke...I think)

anyways
it lead to chase and I having a discussion about who wears the pants in our relationship.

Mrs- "Chase who do you think wears the pants in our relationship?"

Mr- "I think that neither of us dominate our relationship"

Mrs- "Me too, well.... unless I want to wear the pants..."

Mr- "I am the captain of the ship because you say I can be....."