Jace brushed the hair away from Clary's face as she took his cock into her mouth, her warm lips sliding effortlessly around him. He sat, with his back against the railing of the headboard, and moaned as she stroked him, relentlessly. He took her head into his hands and pulled her roughly into his groin.
Sebastian entered the room and saw his sister's head deep within Jace's crotch and smiled. He levered himself on the bed and positioned himself behind her, pulling her hips to him.
"Perfect," he murmured, before he buried his cock deep within his sister's hot core.