Dropping to a crouch, you make your way to the railing and peek over. She's sitting on the bench that runs along the length of the half-wall that is just a bit above waist height. Her head is thrown back, her legs are spread wide, and kneeling in front of her, his face buried in her crotch, is a man, eating her out with great enthusiasm.
Her eyes are closed, her v-neck t-shirt and bra pushed down, her large breasts spilling over and heaving with every breath she takes. Her hands are wrapped behind his head, fingers buried in his short brown hair. The moonlight limns her face, the swollen lips, the slick wetness around her mouth, the beads of sweat even in the cool air. She was wearing a denim mini-skirt, which was bunched up around her waist, and no panties were in evidence anywhere.
Her legs are resting on his shoulders, his hands cupping her ass, and her feet, clad in the fuck-me red pumps you bought her, are waving in the air as she gyrates against his mouth.
Her breath catches in that way you know so well, and her chin sinks to her chest, her eyes squeezed tight as a strangled gasp escapes clenched teeth. Paroxysms wrack her frame, again and again, as she cums.
Finally she gives one last jerk of her hips, and she relaxes all at once, her hands sliding to her thighs. The man straightens and you recognize him as one of the guys from Charlie who stayed behind while you were in the field. You knew he and she had once had a thing, but you had no idea that they'd ever gone this far. Or still were going this far.
Taking stock, you quickly and silently move around to some bushes, in case someone came walking by, and resumed your vigil. This was, after all, what she had invited you to see. Quick hands undid your fly and soon you were hot and huge in your hand, and back to enjoying the show.
The man had gotten to his feet at this point, and undone his own trousers and she leaned forward with excitement, eyes shining as he pulled out his cock. It was his turn for his fingers to be buried in her hair as she opened her mouth and swallowed him whole. Unable to help himself, he gave a guttural groan, and she responded by snapping her index finger and thumb around the base of his dick, to keep him from cumming too soon.
His face was slick with her juices as he tilted his head back and closed his eyes, his hips moving in time with her bobbing head. It didn't take long for long strings of saliva to drip from her lips as she continued to slowly move her back and forth.
All at once, she pulled away, his cock making a popping noise as it escaped the vacuum of her mouth. Turning around, she put her knees on the bench and offered her ass to him and it didn't take long for him to take her up on it, surging up behind her and thrusting in with powerful ease with how wet they both were. The wall no longer hid her, and her bouncing tits were on full display for anyone who happened to be walking by. It was obvious she didn't care.
She leaned back into him as he pumped her, and his hands cupped her breasts, offering first one to her eager mouth, then the other, then both at the same time. Then his hand snaked between them and fastened on the back of her neck and he forced her down to lean over the wall, her tits jumping around with each thrust, she bracing herself against the wall with white-knuckled hands.
He grabbed her hips and slammed into her and stayed inside as he came and came, so much so that you could see it dripping to the concrete floor beneath their feet. It was evident she felt him cum and it set her off again, her hips bucking against him so hard he could barely hang on and stay inside her.
Panting heavily, they fell still for a moment, gathering the strength to move. He pulled out and she grunted again. A moment of silence broken only by the rustling of clothing as they set their wardrobe to rights.
