G C Scott 
His Mistress’s Voice [EPUB ebook] 

Sensing a powerful, animal drive within Tom that echoes her own, Beth decides to make Tom’s initiation into bondage a swift one. His hesitant first steps soon quicken as he is drawn further into her dark and intimate web. Just when their relationship seems to have reached its peak, Beth introduces him to Harriet – and the games suddenly become even kinkier and more convoluted…