Watching him completely lose it underneath her was very much worth it. She liked watching him like this, unable to resist her. To be the first one to ever do this to him, to get him to experience all of these sensations was something she relished in. "I know," she mumbled as she withdrew a bit, giving him a couple more licks with her tongue before putting her lips back around him and this time taking him into her mouth as far as she could. She gave a soft groan with him all in her mouth like that, making it nice and wet and tight for him, encouraging him to thrust up if he wanted. The very tip of her tongue teased his head, wiggling over it and licking the precum off each time she drew back.