Luckily for her, Lex wasn't aware of the fact that his steps would send out vibrating ripples out to her, thus giving away his position. But this was Lex; he was too full of himself to even comprehend that ability at the moment. He viewed himself on top of his game, therefore no one would be able to hear or see him, therefore he would have his way with this lovely lady and then be on his way. He was the vampire, the top of the food chain. That was that and there was no changing Lex's mind.
And without hesitation, his feet shifted slightly as he darted full speed at the woman, eager to sink his fangs into her. In the back of his mind, he imagined what her exotic blood would taste like. Perhaps something new and unique. Lex wasn't sure, but he couldn't wait to find out. That smirk never faded as he lunged out at her, ready to grapple the woman and pin her down to the ground, inches away from her. And if she struggled, he could just drag her off to the forest. No harm done there. All was well in his mind... for now.