If Sanji wants his attention solely on him? He doesn't have to try very hard at all. Luffy's eyes are wide and locked on Sanji, watching every movement with interest. He looks... so good down there. Slick blonde hair clinging to his skin, the way his tongue works over him, the stretch of his lips--

He throbs, another little moan leaving him. He squirms, restless, beneath the careful attention. "Sanji..."