Though Jones had formerly believed himself in the very prime of youth and vigor, his first encounter with Lady Bellaston both vexed and puzzled him. For though his own youthful appetites were quickly sated, hers were ravenous and almost beyond his power to satisfy. Her kisses and caresses were a source of inexpressible delight; yet when all was over it was he who collapsed into the most profound slumber. Early the next morning she took him shopping, her manner fresh and cheerful. Jones could not fathom her spritely behavior. And in spite of all his best endeavors, he could scarcely keep his eyes open.
(Excerpt from The History of Tom Jones.)
~ Henry Fielding