Reaper had faced down hordes of the dead and damned, yet that paled in comparison to the challenge he faced now in simply trying to stay standing upright before her. Torn between what to do, and so very tempted to pause long enough so that he could moved them both to the bed, in the end all choice was taken away when the Doc so suddenly began to pick up the pace. Just the sensation of her bathing every inch of his steel like length with her saliva, and the feel of her warm wet mouth taking his need over and over again had John's vision blurring.
The pressure was already swelling within. Those balls feeling heavy with desire. Thankfully her hand around his cock kept his hips from bucking on their own accord. When her fingers danced up along his chest Grimm reached down and gently took her hand; pulling it up a little higher until he could kiss her palm softly. "So...fuck, Doc. So close." Eloquence and coherency might have flown out the window long ago, but Grimm still sought to at least let her know that he was nearing the peak. Though it was likely that she could already feel how every inch of his manhood practically throbbed and quivered between her lips.