“Why? Because I don’t think you will…” he said as he inched a little closer
“Why? Because I don’t think you will…” he said as he inched a little closer. “Oh really?” she whispered up to him, “… You think just because you’re my twin brother, I wouldn’t do it?” The head of his cock bumped against her chin softly. Her mouth dropped open. "No, I think you’re chicken.“ he said with a grin, teasing her and pushing her the limits of her bluff. Her lip ring grazed his cock softly, sending a chill down the shaft, through his hips and up his spine. He tilted his head back and closed his eyes, letting the wave take him over for an instant. The very next thing he felt, was the warmth of her mouth covering the head of his cock, and then making its way down more than half of his shaft. His eyes flung open and he looked down, and instinctively ran a hand down the back of her head, and gathered her hair in his fingers. Her mouth pulled back to the tip and then plunged down his cock again. She wasn’t one to bluff. -- source link