He watched her bite on her lower lip, and he felt a strange twisting in his gut, something odd and foreign and intense. He wanted to reach a finger out and smooth those marks she was making from her lip away. He could see his finger sliding across her mouth, tracing her outline followed by him leaning in to replace his finger with his lips...
Neville found that he had forgotten to breath, and he took a large gulp of air in, turning from her as his face flushed at his inappropriate thoughts about her and him. He nodded, his side to her, "Sure, of course. You both with have to be getting home. But I can help, if you'd like," and he started, "And we didn't touch your cake! Do you want to take it with you?"