art-of-domination:

She clung to him tightly as he ran his fingers over the most delicate parts of her flesh. Cleaning her, stroking her, giving her the tender care that she needed. He could be rough, forceful and domineering, providing her with the structure and discipline that she craved and needed.  She craved his firmness, his strength and brutality, often yearning for it and requesting it.

But yet, she would not be able to enjoy that without his gentleness, his comfort, his solace.  He did not fear showing her his vulnerability, his softness, his devotion and love.  It was this side of him, coupled with the other needs he provided that made her choose him.  The way he took care of her, held her, massaged her, always making her feel safe and protected.  The reason she was with him, was because he was him and no other.  There could never be anyone else, because they were not him.