Twilight is not my forte, but I love the books. I thought I might as well make an attempt.

x

When Bella lies sleeping sprawled across the bed, half 'cross him from unconscious tossing and turning, he can hear her heart's tremulous beating 'gainst her ribcage. He can feel It as if her flesh were thin as paper, pounding against his granite skin like-

-blood pulsing through her veins, like life and vitality in the form of oozing sticky crimson, like blood in his mouth, like hunks of yummy Bella flesh torn up and swallowed, like her heart in his hands (inside him).

He breathes ragged, though smelling hardly helps. Her heart beats on, oblivious to his trembling hands.

xxx