Ianto's so responsive, and so good for him, his struggle to stay still very obvious in the new tension Jack can see and feel in his muscles. "It's okay, let go, just relax, let me have all those gorgeous reactions," he coaxes, his voice honey-toned, while his finger works to coax more reactions from his body, twisting and rubbing, finding that sweet little bulge and pausing there to try and draw more reactions from him. Then pulling out and being replaced by two, while Jack leans low over him, breath and then lips on the back of his neck.