Little Johnny arrives home to find his mother and father having sex.
“Whatcha doin’ Dad?”
“We’re playing Crib, and your mother’s my partner. Get downstairs.”
Little Johnny goes downstairs to the living-room to find his sister and boyfriend on the sofa deeply engrossed in sexual intercourse.
“Whatcha doin’ Sis’?”
“We’re playing crib, and my boyfriend’s my partner. Get outside.
Little Johnny goes out to the garden shed, where he finds his Grandfather masturbating.
“Whatcha doin’ Grandpa?”
“I’m playing crib.”
Replies Grandpa.
“Where’s your partner?”
His grandfather replies,
“When you’ve got a good hand, you don’t need a partner!”

Oh that would be so much funnier if I didn't picture an old man touching himself afterwords eeeeeeeeew.

ah, he was just doin the hand jive