Funny joke- Who is playing who?

[Ibrahim Ibrahim A]

One day a boy went to his father and told him he wants
to marry a girl, his father ask him what is the name of the girl, he told him. His father said that girl is ur sister but ur mother don´t know. The boy went to his mother and told her what his father said. Her mother laugh and said ur dad is not ur dad but ur dad dont know.

[Stanley_13001]

Road clear for the guy na

[Sunexx360]

Ur joke is not well understood

[Folami David]

they are playing themeselves