She closes her eyes.  The woman bobbing her head, taking the man's length deeper, and deeper still.  Suckling at the throbbing erection.  Her hand sliding to his base, fingers kneading gently at his sack.  A throaty little purr as she suckles at the length, taking her time, going slow, kneading with her fingers at the base of the length between her lips.  She does keep her word too.  Silent.  Sucking, bobbing, kneading, gripping.  All as a means to prolong her attentions.  The longer she's down there, the more he makes, and alternatively, the more she makes.  She's careful, working to bring him close, then to help him ease back, over and over, repeating the same things over and over, until he can't hold back.  She'll swallow, feeling that lovely rush, eyes lifted up, looking at him, lips curled into a smile.