"Much better!" the serpent sighed.  And he did indeed begin using her for his pleasure.  One of his twin cocks sunk deep into her sex, while the other wormed its way between her buttocks and penetrated her anus.   The snake began rhythmically pumping both organs into their respective orifices, though at his current pace it was clear he intended this to be a slow process.   His captive lay passively in his coils, and it was only proper for him to enjoy her submission.  He eventually intended to squeeze her into oblivion, but there was plenty of time for that.<br/><br/>An hour, then two went by, and by this time the snake was lost in pleasing itself with its living sex doll.  His coils had tightened only slightly on his bovine captive, but that was soon to change.   He longed to hear his captive wheeze and beg him for every breath.<br/><br/>"Let's tighten things up a bit, Kala.  At any point feel free to beg for your life.   If you do it convincingly I'll listen."<br/><br/>The coils around her tightened all at once but did not relax.  The strength in them was enormous.  Immediately it became more difficult for Kala to breathe, as if a huge weight were sitting on her chest.