Only when she spoke, the thickness of her voice implied that she must be in her forties or fi fties. And when she smiled, she performed with obvious restraint: her mouth was trained to open only wide enough to sip, and the muscles around her full lips were held back, which made an unnatural expression. But when she was unable to restrain herself, like during that blissful moment, she occasionally showed her unattractive lower decayed teeth and the awfulness of a crust of sunfl ower seed stuck between her neat upper false teeth.