wild card

One day a little boy named Bobby walked in on his parents having
sex. "What are you doing?" asked Bobby.


"We're playing poker and your mom's the wild card," replied the
father.


So Bobby walked out and went into his brother's room and saw his
brother and his girlfriend having sex. "What are you doing?"
asked Bobby.


"We're playing poker and she's the wild card," replied his
brother.


So Bobby walked out and went to his room. Later on Bobby's
father walked in. "What are you doing!?!" yelled his father.


Bobby replied, "I'm playing poker!"


"But where is your wild card?" asked his father.


Bobby replied, "With a hand like this who needs a wild card."