Jack sensed her pleasure when he made contact with her clit.  He began to focus all of his effort on it. With his hands he held her pussy lips apart and  touched only the pistil of her flower (clit) ever so lightly with just the tip of his pointed tongue. He teased it lightly with faint flicks and soft circular swirls.  Barely there he teased her  passion until seemingly her engorged clitoris reached out as if begging for more.  He felt tension build and fade like the ebb and flow of the ocean tide. When he was sure that he had her wanting more, he suddenly stopped allowing tension to build and for her body to crave the pleasure from the moments before.  When he resumed, he started in tenderly and gradually increased the pressure and speed of his efforts. It was his plan to mix it up until she came hard.