Spike kept watching her, scenting her.  He could feel the surge in her arousal, see those shameless nipples against her vest.  He wanted nothing more than to rub himself naked against her, feel her with every inch of his skin.<br/><br/>Then she bit and he arched, with a feral purr-growl, a sound of pure arousal and heat, and his cock throbbed and strained against his jeans as his whole body ached for contact.