A part of him really wants this to go on forever and never end, but that's not going to happen, not with Ianto fucking him like there's no tomorrow. There's no way he can hold out against that onslaught of sensation and, far too soon, he can feel his climax start to pool deep within. He clings on as Ianto continues to plough into him, nowhere to hide, no way to hold back, and it's utterly perfect. He sobs and pants and cries out as the pleasure floods through him, whole body taut with it as he pulses out his release.