"Betting Bessie" joke

Eighty-year-old Bessie bursts into the recreation room of the men's retirement home. She holds her clenched fist in the air and saucily announces, "Anyone who can guess what's in my hand, can have sex with me tonight!"

A witty, elderly gentleman in the rear shouts out, "An elephant?"

Bessie thinks a minute and replies, "Close enough!"