Every thrust and moan from behind increased the throbbing between my legs. Matching stroke for stroke, gazing out the second-story window. With each hard full pump, the grasp on my hips gets tighter. Moving down to all fours, quivering with excitement, now filling me full length... longer than I've ever experienced before. I'm fully open, receiving pleasure that I had never felt. Sweat glancing down the small of my back, rolling down and dripping on each grind of his long, strong manhood, now balls deep. His final thrust leaped through me inside, causing the best release I could ever ask for. A leg trembling, heart pounding, first time, is something I'll never forget.