Brainless Knockout

BRAINLESS KNOCKOUT
Jill was a knockout but alas, she also was virtually brainless.
Fortunately, this was no drawback as far as John's plans for the evening were concerned. He was delighted when she agreed to come up to his apartment for a nightcap.
As he prepared the drinks, full of anticipation, Jill explored the apartment, stopping now and then to
examine a painting or a book title, she didn't quite understand. At last she stopped dead in front of his fireplace.
"What on earth is that?" Jill asked pointing to a carved wooden object lying on the mantel.
"Oh, that. It's African," John replied. "They use them in their fertility rites. It's a phallic symbol."
"Oh, I see." stated Jill demurely. "I'd hate to tell you what it looks like!"