A few glances was all it took for Darcy to realize that Sebastian was watching her with an intensity that was just a bit nerve-wracking. However, he was clearly enjoying her efforts, and considering she'd never done this before, she felt rather proud of herself. She was, however, nervous about him coming in her mouth. If that was what he wanted, Darcy was sure she could handle it - she was beginning to understand why it was so important to keep her Master happy - and chalked this entire encounter up to an incredibly enjoyable learning experience.
Alternating between her mouth and her hand, Darcy doubled her efforts, spurred on by his assertion that he was close. She pressed her free hand harder against his thigh, fingers splayed, nails digging in just enough to hurt a little bit. He'd seemed to enjoy it earlier when she dug at his back, so perhaps this would be the key to pushing him over the edge.