She sighs like his touch is a hit of morphine and she's been hurting for it, and nothing Irene Adler could do would ever have a quarter of the effect on him that one careless sigh does. Suddenly he has to have his arms around her, his weight bearing her down onto the mattress before he really knows what he's doing, giving in entirely to the wave of greed that buzzes through his veins. He needs to know what that sound tastes like in his mouth.