With a deep flush in her cheeks, she lifted herself up and down with only her legs, doing her best to grind against him, gyrating and moaning as he pinched and flicked at her nipples, kissed her, or reached behind her to press against the plug. In moments, she was moaning with a combination of arousal and frustration as the sensations were intensely pleasurable and yet not quite enough to allow her to reach orgasm. 