Bound and at her mercy, the sub's body tenses as he strokes his rigid cock, following her every command. "Harder," she purrs, "Faster." His breathing ragged, he's close, so close, but she halts him, making him wait, his balls heavy with unshed cum. "Now," she orders, and he comes undone, his body convulsing as he releases. He hesitates, but her stern gaze reminds him of his duty. He leans down, his tongue snaking out to taste his own salty essence, licking, lapping, until it's all gone.