There was no way Remus could hold back any longer. Between the noises Tonks was making and the way she was clenching around him, he was completely lost at sea. Gritting his teeth, his thumb rubbed and toyed with her clit while he thrust, more moving with muscle memory as thinking about what his hands and hips were doing were far beyond him at the present. He had one ounce of self-control left and he was hanging onto it by the barest tips of his fingers.
He was aware of Tonks touching herself and he was struck once more by how gorgeous she was. How well they simply fit together. There was no other way to really describe it. They just fit. She complimented him in more ways than one.
When Dora fell beyond the edge she pulled Remus down with her. One more thrust and he came with a low groan/growl as he emptied himself inside her. She was so tight around him and he had to admit, he was a lucky man to always have that feeling. Her skills made it feel like the first time, every time and to bury himself in that warm heat was beyond imagining. His hips still pumped, emptying every last bit inside her before he finally collapsed, breathless, against her. Remus pressed his lips to the side of her neck, the only form of communication he could manage at the present. Though he could feel his cock begin to soften, he grew still, determined to stay inside Dora for as long as humanly possible.